User blog comment:Unholy Ark/Sion rework/@comment-5319740-20140626175347

why remove sion's niche aoe heal? its what makes sion, well, sion.

on the other hand it would rather be better to ditch the barrier's AP/AD scaling and base damage in favor of 15% max HP instead.

and another note, move sion's feel no pain to this as well, where it consistently blocks 10% amount of damage when its not on cooldown.

PS: that kit feels like a modified amumu for some reason.