Much stuff here, so I'll keep it short

The image showing them all
Spoiler: 


Cold Feet:
- Cold Feet description could be reworded to be clearer.
- Cold Feet has an unnecessary note telling its total damage
- Cold Feet has an unnecessary note telling its tick interval (with an outdated value)
- Added Cold Feet note telling that it can't be cast on units already affected by it
- Added Cold Feet note telling that the spell completely cancels when walking out of range once
- Changed "DAMAGE PER TICK" to "DAMAGE PER SECOND", making the damage interval note redundant
- Added "CHARGE RESTORE TIME" To the traits, since the cooldown disappears once the charge talent is chosen, leaving the player no info about how long it takes to recharge (it should only appear when the talent is chosen)


Ice Vortex:
- Rewroded Ice Vortex description to tell that it reduces magic resistance (currently says it amplifies magical damage done against the target), and removed duration from description, moved to traits
- Removed Ice Vortex note saying that it doesn't affect spell immune enemies (tooltip header already tells spell immunity interaction)
- Added Ice Vortex note telling Ice Vortex stacking behavior (doesnt stack)
- Added Ice Vortex note telling about its 200 radius ground vision
- Added Ice Vortex note about its debuff lingering
- Changed "INCREASED MAGIC DAMAGE" to "MAGIC RESISTANCE REDUCTION" for accuracy and consistancy
- Added VORTEX DURATION to traits


Chilling Touch:
- Removed duration and "ancient apparition always receives the buff" from Chilling Touch description (moved cd to traits and the other sentence to notes).
- Reworded Chilling Touch's first note about its damage being separate to be clearer
- Reworded Chilling Touch's second note about it only working against creeps and heroes to also tell its interaction vs units it doesn't affect (still applies slow)
- Added Chilling Touch note telling it always buffs the caster (moved here from the description and reworded to not use hero names because Rubick)
- Changed "ATTACK SPEED: -20" to "ATTACK SPEED SLOW: 20"
- Added DURATION to traits

Ice Blast:
- Slighty reworded Ice Blast description to say it prevents health regen, and not regen in general (doesnt prevent mana regen)
- Reworded Ice Blast note about its aoe growth to be more clear
- Added Ice Blast note about the initial tracer (visibility to enemies)
- Reworded Ice Blast note telling it only shatters heroes, to it only debuffs heroes, while creeps and illus are only hit by the impact damage
- Reworded Ice Blast note about its hp freeze to say all kind of heals, instead of most
- Expanded Ice Blast note about its kill credit stuff
- Changed "DAMAGE" to "IMPACT DAMAGE", because it applies burst and dot damage and this trait is refering to the burst damage

Release:
- Added 3 levels to the Release sub-spell, so ALT-clicking it shows the correct level (needs to be coded to level up together with Ice Blast)


Modifiers:

- Reworded Cold Feet initial modifier to get rid of "you" and "will"
- Reworded Cold Feet stun modifier to get rid of hero names (because Rubick)
- Added description to Cold Feet charges modifier, copied from other charge-based spells' modifiers
- Reworded Ice Vortex modifier to say it reduces magic resistance, to get rid of "will" and added values
- Reworded Chilling Touch modifier to get rid of "will" and to fit the style of most other modifiers
- Reworded Ice Blast modifier to get rid of "will"


Here are the modified sections of dota_english.txt and npc_abilities.txt required for these changes and additions. Changed values are marked red and new values are marked blue.

Code:
		//Ancient Apparition
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet"								"Cold Feet"
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_Description"					"Places an icy curse on an enemy, marking their position upon cast and dealing damage over time. If the target moves 470 range away from the mark, the curse gets lifted. However, when staying within range for 4 seconds, the curse freezes the target in place."
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_Lore"						"Kaldr's presence draws those around him into a frozen void, threatening to lock them in an icy prison for eternity."
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_Note0"						"Cannot be cast on a unit who is already affected by Cold Feet."
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_Note1"						"The debuff gets fully dispelled when getting out of range. Its effects do not continue when getting within range again."
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_damage"						"DAMAGE PER SECOND:"
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_stun_duration"				"STUN DURATION:"
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_break_distance"				"BREAK DISTANCE:"
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_cast_range_tooltip"			"CAST RANGE:"
		"DOTA_Tooltip_ability_ancient_apparition_cold_feet_charge_restore_time"			"CHARGE RESTORE TIME:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex"							"Ice Vortex"
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_Description"				"Creates an ice cold vortex that slows movement speed and strips away magic resistance of enemies standing close to it."
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_Lore"						"Frozen, caustic winds are at the whim of Kaldr, chilling the field of battle."
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_Note0"						"Multiple overlapping vortexes do not stack."
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_Note1"						"Provides 200 radius ground vision around itself."
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_Note2"						"The effect is aura-based and lingers for 0.5 seconds."
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_movement_speed_pct"			"%MOVEMENT SPEED SLOW:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_spell_resist_pct"			"%MAGIC RESISTANCE REDUCTION:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_radius"						"VORTEX RADIUS:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_vortex_duration"					"VORTEX DURATION:"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch"						"Chilling Touch"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_Description"			"A frigid gust enchants allied heroes, granting them bonus magical damage for a given number of physical attacks, while slowing their attack speed slightly."
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_Lore"					"The Ancient Apparition's eternal knowledge brings a frigid enchantment to his allies."
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_Note0"					"The damage is dealt in a separate instance. It does not count as attack damage."
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_Note1"					"Damage is applied only against heroes and creeps. However, the attack speed slow is always applied."
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_Note2"					"The caster always gets the buff, even when not within the targeted area."
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_max_attacks"			"MAX ATTACKS:"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_bonus_damage"			"DAMAGE:"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_attack_speed_tooltip"	"ATTACK SPEED SLOW:"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_radius"					"RADIUS:"
		"DOTA_Tooltip_ability_ancient_apparition_chilling_touch_duration"				"DURATION:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast"								"Ice Blast"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Description"					"Launches a tracer toward any location on the battlefield, which must be triggered again to mark the area to be blasted by a damaging explosion of hail. The further the tracer travels, the larger the explosion will be. Enemies caught in the explosion, or who touch the icy ball of hail as it travels, are Frostbitten, taking damage and prevented from healing or regenerating health. If a Frostbitten unit's health drops below a certain percentage, they instantly shatter.\n\nUpgradable by Aghanim's Scepter."		
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Lore"						"Ice storms from ages past flow through Kaldr's frosty limbs, crashing into the world and turning its inhabitants into monuments to his eternal power."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Note0"						"The explosion radius starts at 275 and grows by 50 for every second traveled, capped at 1000 radius. The icy ball has a radius of 275."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Note1"						"The tracer is harmless and invisible to enemies, but can be seen by them on the minimap when passing by towers."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Note2"						"The frostbitten debuff is only placed on heroes. Creeps and illusions are only hit by the impact damage."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Note3"						"The health Freeze prevents all kinds of healing, including the fountain."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_Note4"						"When a hero dies to the shatter, the kill is creditted to whoever procced it. When procced by self-inflicted damage, the caster is creditted."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_frostbite_duration"			"FROSTBITTEN DURATION:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_dot_damage"					"FROSTBITTEN DAMAGE PER SECOND:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_kill_pct"					"%SHATTER HEALTH THRESHOLD:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_frostbite_duration_scepter"	"SCEPTER FROSTBITTEN DURATION:"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_aghanim_description"		    "Increases frostbite duration."
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_release"						"Release"
		"DOTA_Tooltip_ability_ancient_apparition_ice_blast_release_Description"			"Releases the ice blast to explode at the tracer's current location."
		"npc_dota_hero_ancient_apparition_bio"											"Kaldr, the Ancient Apparition, is an image projected from outside time. He springs from the cold, infinite void that both predates the universe and awaits its end. Kaldr is, Kaldr was, Kaldr shall be...and what we perceive, powerful as it appears to us, is but the faintest faded echo of the true, eternal Kaldr. Some believe that as the cosmos ages and approaches its final moments, the brightness and power of Kaldr will also intensify--that the Ancient Apparition will grow younger and stronger as eternity's end draws nigh. His grip of ice will bring all matter to a stop, his image will cast a light too terrible to behold. An Apparition no longer!"

...

		"DOTA_Tooltip_modifier_cold_feet"									"Cold Feet"
		"DOTA_Tooltip_modifier_cold_feet_Description"						"Taking periodic damage. About to get frozen when not moving away from the marker."
		"DOTA_Tooltip_modifier_ancient_apparition_cold_feet_charge_counter"	"Cold Feet Charges"
		"DOTA_Tooltip_modifier_ancient_apparition_cold_feet_charge_counter_Description"	"You may cast Cold Feet whenever there is a charge available."
		"DOTA_Tooltip_modifier_ancientapparition_coldfeet_freeze"				"Frozen"
		"DOTA_Tooltip_modifier_ancientapparition_coldfeet_freeze_Description"			"Frozen by Cold Feet."
		"DOTA_Tooltip_modifier_ice_vortex"									"Ice Vortex"
		"DOTA_Tooltip_modifier_ice_vortex_Description"						"Movement speed slowed by %dMODIFIER_PROPERTY_MOVESPEED_BONUS_PERCENTAGE%%% and magic resistance reduced by %dMODIFIER_PROPERTY_MAGICAL_RESISTANCE_BONUS%%%."
		"DOTA_Tooltip_modifier_chilling_touch"								"Chilling Touch"
		"DOTA_Tooltip_modifier_chilling_touch_Description"					"Slowing attack speed, but applying magical damage to attacks.\n\nClick to remove."
		"DOTA_Tooltip_modifier_ice_blast"									"Frostbitten"
		"DOTA_Tooltip_modifier_ice_blast_Description"						"Taking damage over time and cannot heal or regenerate health. Instant death when health drops too low."
Code:
	//=================================================================================================================
	// Ancient Apparition: Ice Vortex
	//=================================================================================================================
	"ancient_apparition_ice_vortex"
	{
		// General
		//-------------------------------------------------------------------------------------------------------------
		"ID"							"5346"														// unique ID number for this ability.  Do not change this once established or it will invalidate collected stats.
		"AbilityBehavior"				"DOTA_ABILITY_BEHAVIOR_AOE | DOTA_ABILITY_BEHAVIOR_POINT | DOTA_ABILITY_BEHAVIOR_IGNORE_BACKSWING"
		"SpellImmunityType"				"SPELL_IMMUNITY_ENEMIES_NO"
		"SpellDispellableType"			"SPELL_DISPELLABLE_NO"
		
		// Casting
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCastRange"				"1500 1500 1500 1500"
		"AbilityCastPoint"				"0.01 0.01 0.01 0.01"

		// Time		
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCooldown"				"4.0"
		"AbilityDuration"				"16"

		// Cost
		//-------------------------------------------------------------------------------------------------------------
		"AbilityManaCost"				"80 90 100 110"

		// Special
		//-------------------------------------------------------------------------------------------------------------
		"AbilitySpecial"
		{
			"01"
			{
				"var_type"				"FIELD_INTEGER"
				"radius"				"275 275 275 275"
			}
			"02"
			{
				"var_type"				"FIELD_INTEGER"
				"movement_speed_pct"	"-15 -20 -25 -30"
			}
			"03"
			{
				"var_type"				"FIELD_INTEGER"
				"spell_resist_pct"		"-15 -20 -25 -30"
			}
			"04"
			{
				"var_type"				"FIELD_INTEGER"
				"vision_aoe"		"200 200 200 200"
			}
			"05"
			{
				"var_type"				"FIELD_INTEGER"
				"duration"				"16"
			}
		}
	}
	
	//=================================================================================================================
	// Ancient Apparition: Chilling Touch
	//=================================================================================================================
	"ancient_apparition_chilling_touch"
	{
		// General
		//-------------------------------------------------------------------------------------------------------------
		"ID"							"5347"														// unique ID number for this ability.  Do not change this once established or it will invalidate collected stats.
		"AbilityBehavior"				"DOTA_ABILITY_BEHAVIOR_AOE | DOTA_ABILITY_BEHAVIOR_POINT | DOTA_ABILITY_BEHAVIOR_IGNORE_BACKSWING"
		"AbilityUnitDamageType"			"DAMAGE_TYPE_MAGICAL"
		"SpellImmunityType"				"SPELL_IMMUNITY_ENEMIES_YES"
		"SpellDispellableType"			"SPELL_DISPELLABLE_YES"

		// Casting
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCastRange"				"800 800 800 800"
		"AbilityCastPoint"				"0.01 0.01 0.01 0.01"

		// Time		
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCooldown"				"50.0 42.0 34.0 26.0"
		"AbilityDuration"				"30.0"

		// Cost
		//-------------------------------------------------------------------------------------------------------------
		"AbilityManaCost"				"110 120 130 140"

		// Special
		//-------------------------------------------------------------------------------------------------------------
		"AbilitySpecial"
		{
			"01"
			{
				"var_type"				"FIELD_INTEGER"
				"radius"				"525"
			}
			"02"
			{
				"var_type"				"FIELD_INTEGER"
				"max_attacks"			"3 4 5 6"
			}
			"03"
			{
				"var_type"				"FIELD_INTEGER"
				"bonus_damage"			"50 60 70 80"
				"LinkedSpecialBonus"	"special_bonus_unique_ancient_apparition_2"
			}
			"04"
			{
				"var_type"				"FIELD_FLOAT"
				"attack_speed_pct"		"-20"
			}
			"05"
			{
				"var_type"				"FIELD_FLOAT"
				"attack_speed_tooltip"	"20"
			}
			"06"
			{
				"var_type"				"FIELD_FLOAT"
				"duration"				"30"
			}
		}
	}

	//=================================================================================================================
	// Ancient Apparition: Ice Blast
	//=================================================================================================================
	"ancient_apparition_ice_blast"
	{
		// General
		//-------------------------------------------------------------------------------------------------------------
		"ID"							"5348"														// unique ID number for this ability.  Do not change this once established or it will invalidate collected stats.
		"AbilityBehavior"				"DOTA_ABILITY_BEHAVIOR_POINT | DOTA_ABILITY_BEHAVIOR_AOE"
		"AbilityType"					"DOTA_ABILITY_TYPE_ULTIMATE"
		"AbilityUnitDamageType"			"DAMAGE_TYPE_MAGICAL"
		"SpellImmunityType"				"SPELL_IMMUNITY_ENEMIES_YES"
		"SpellDispellableType"			"SPELL_DISPELLABLE_NO"
		"FightRecapLevel"				"2"

		"HasScepterUpgrade"			"1"

		// Casting
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCastPoint"				"0.01 0.01 0.01"
		"AbilityCastRange"				"0"
		
		// Time		
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCooldown"				"40.0"
		
		// Cost
		//-------------------------------------------------------------------------------------------------------------
		"AbilityManaCost"				"100 125 150"
		
		// Damage.
		//------------------------------------------------------------------------------------------------------------- I removed this part for the description, but this will cause its impact damage to not occur, so it would need a bit of recoding as well
		"AbilityDamage"					"250 350 450"
		
		// Special
		//-------------------------------------------------------------------------------------------------------------
		"AbilitySpecial"
		{
			"01"
			{
				"var_type"				"FIELD_INTEGER"
				"radius_min"			"275 275 275"
			}
			"02"
			{
				"var_type"				"FIELD_FLOAT"
				"radius_grow"			"50.0 50.0 50.0"
			}
			"03"
			{
				"var_type"				"FIELD_INTEGER"
				"radius_max"			"1000 1000 1000"
			}
			"04"
			{
				"var_type"				"FIELD_INTEGER"
				"path_radius"			"275 275 275"
			}
			"05"
			{	
				"var_type"				"FIELD_FLOAT"
				"frostbite_duration"	"8.0 9.0 10.0"
			}
			"06"
			{	
				"var_type"				"FIELD_FLOAT"
				"dot_damage"			"12.5 20.0 32.0"
			}
			"07"
			{	
				"var_type"				"FIELD_INTEGER"
				"speed"					"1500 1500 1500 1500"
			}
			"08"
			{	
				"var_type"				"FIELD_FLOAT"
				"kill_pct"				"10.0 11.0 12.0"
			}
			"09"
			{
				"var_type"				"FIELD_INTEGER"
				"target_sight_radius"	"500 500 500"
			}
			"10"
			{	
				"var_type"				"FIELD_FLOAT"
				"frostbite_duration_scepter"	"17"
			}
			"11"
			{	
				"var_type"				"FIELD_FLOAT"
				"damage"				"250 350 450"
			}
		}
	}

	//=================================================================================================================
	// Ancient Apparition: Ice Blast Release
	//=================================================================================================================
	"ancient_apparition_ice_blast_release"
	{
		// General
		//-------------------------------------------------------------------------------------------------------------
		"ID"							"5349"														// unique ID number for this ability.  Do not change this once established or it will invalidate collected stats.
		"AbilityBehavior"				"DOTA_ABILITY_BEHAVIOR_HIDDEN | DOTA_ABILITY_BEHAVIOR_NO_TARGET"
		"AbilityType"					"DOTA_ABILITY_TYPE_ULTIMATE"
		"MaxLevel"						"3" Also needs codes to set its level equal to Ice Blast's level, because otherwise it can be leveled up separately
		
		// Casting
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCastPoint"				"0 0 0"

		// Time		
		//-------------------------------------------------------------------------------------------------------------
		"AbilityCooldown"				"1.0 1.0 1.0"
	}