Since 7.06, Brain Sap is supposed to pierce spell immunity if the caster has Aghanim's Scepter.
But currently, it always pierces spell immunity. The Scepter only enables targeting the spell on a spell immune unit.
What this means is, when Bane is spell immune and then casts Brain Sap on an enemy who has Lotus Orb active, it will fully pierce the spell immunity, even when the target did not have Aghanim's Scepter.
Repro:
1. Pick Bane, level up Brain Sap and get Black King Bar
2. Create an enemy and give them a Lotus Orb
3. Cast Lotus Orb on the enemy
4. Activate Black King Bar
5. Cast Brain Sap on the enemy
Result: The reflected Brain Sap pierces spell immunity.
Expected result: The reflected Brain Sap pierces spell immunity only when the enemy has Aghanim's Scepter.
But currently, it always pierces spell immunity. The Scepter only enables targeting the spell on a spell immune unit.
What this means is, when Bane is spell immune and then casts Brain Sap on an enemy who has Lotus Orb active, it will fully pierce the spell immunity, even when the target did not have Aghanim's Scepter.
Repro:
1. Pick Bane, level up Brain Sap and get Black King Bar
2. Create an enemy and give them a Lotus Orb
3. Cast Lotus Orb on the enemy
4. Activate Black King Bar
5. Cast Brain Sap on the enemy
Result: The reflected Brain Sap pierces spell immunity.
Expected result: The reflected Brain Sap pierces spell immunity only when the enemy has Aghanim's Scepter.
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