User blog comment:Deshiba/Stacking Items/@comment-6301771-20140101065624

There's no reason to change more or less anything that you've listed. Stacking exists to force players to perform certain tasks before getting their items to full capacity. Making RoA stack on-kill is ridiculous, and on-level is even moreso. On-level effects are inherently terrible for design because a player can only ever level up 17 times over the course of a game, and once they hit level 18 they can never trigger it ever again.

Banshees does not need mana. They removed the mana from Banshees because it served absolutely no purpose. Your change serves no purpose other than to just make it like it was before. There does not need to be a mana/MR item simply for there to be a mana/MR item. If you're having mana problems and need MR, get a Chalice of Harmony.