The only thing worse than Helena is the dev's complete and utter silence and inaction on the matter. I guess their idea of a great event is to make people unhappy and want to quit playing their game?

My Helena strategy is as follows: if my PUG team seems to know what they're doing and seem determined, I'll stay in the fight. If not, if they're hesitant, go for vines instead of Helena (or just quit out) I'll leave too. There's no amount of token worth that frustration.