Don't nerf the damage, but make Eye of the Storm not stackable. The main problem about this is simply that it stacks endlessly.
Get 12 ppl to synchronise it. Use immovability-pots. Rek everything, no other skills needed. Run away till your ultis are full again. Repeat.
Making this skill not stackable would defenitly fix this bs.
The people defending this cancer are either not playing PvP themselves or are part of destro-trains.