I currently have "Debuff enemies heroes with movement speed slow for 100/175/200 seconds".

But Geostrike skill is gone and replaced with shitty Ransack. How are we supposed to do this? Do we really need to buy a Skadi to do the challenge?

BTW, give us Geostrike back! Ransack sucks! Geostrike does double the damage and has a slow which goes through immunity. Ransack utility falls off way too quickly... it's useless after midgame, whereas Geostrike is powerful late game.