AOE resistance / or support item?
the old mastery that gave aoe resist was pretty cool imo. wouldn;t mind something that played on this theme a bit. for a short duration or when low. something to survive league of aoe ultimates + better not group up.
Too much press R to win.
maybe like a support item that was just like a
ult that you place over your team to mitigate aoe damage. Giving anyone inside to area selected like 10% aoe damage reduction.
this would discourage comps that are too AOE based.
Ultimate.