User blog comment:Draven, the Glorious Executioner/Molir, the Mana Breaker/@comment-5663427-20140930154906/@comment-7709681-20140930171509

In my opinion, while taking aside my dislike of this concept as is an empowered version of Magina from DotA / DotA 2, giving an enemy mana if its either manaless or resourceless, just for the sake of making your concept functional, is a design flaw, specially with the second component, since it wouldn't work against them, since the passive only grants Mana, not Mana Regen.

Yes, being able to fight against a unit that won't be able to regenerate its mana sounds like the ideal scenario, but if your concept depends of this or else the only thing at his disposition would be Q's and W's active, then the issue is on the concept, not the others.