Rez Priest is the most polarizing shit I’ve ever seen.
Rogue is just completely fucked. You think you’re OK because you have card advantage and board advantage and have been playing well. Wrong! By the time the rope is burning they have a full hand, a board, and your board is gone. Much balance, such skill.
Yeah, I think a 100% safe way to spot broken shit is to look things that enable you to do shit for free or at a heavily reduced price. Raza the Chained, Skull of the Man'ari, basically all mage/secret synergies are just some examples.