When crystals were first introduced into the turn-based RPG , a basic formula was created
Fluctuator is very narrow, only really functioning in a cycling focused deck, but its one of the most powerful pieces for that strategy and makes most of the landcycling costs free
These include cards such as Painful Truths, Vindicate, Circle of Power, Combat Tutorial, Cornered by Black Mages, Diabolic Tutor, Read the Bones, Risky Shortcut, Treasure Cruise, Dig Through Time, Transpose, Void Rend, Brainsurge, Cancel, and More
And in the worst case scenario, you could grab an opposing blocker and turn it into your attacker so your forces could come in for the win
You can think about Lightning bolt, that can be used as a removal or a burn spell, depending on the situation
Some unique art on the reprinted cards would have tipped this over the edge to be a total banger.