I feel like this needs a buff, mostly because of the fact that it IS "fair". There is no upgrade "bonus", its strictly the same. Plus, I feel like if your going to put in diss shield/field, its going to be in a specialized deck, and I think it's probably easier to make a more effective entropy mono/duo stall than it is to make a rainbow one. Rainbows are less reliable when you look at it. However, I'm not sure how to buff it without changing the mechanic, changing it like in the suggestion seems like a bad imo, it would be OP.