I read some previous posts. People are right, knowledge is power, getting to know what your opponent is holding IS super powerful and advantageous, since you know what to expect, BUT this kinda seems slow, niche and really bad against aggro. Also a bad top deck.
What the fuck is this bullshit? Drakonid OP was already unbearable, this is an entirely new level of dumb priest shit. This card single-handedly pushes Priest against other control decks. The information you get is insane, let alone being able to play that key-card your opponent is holding. Also, this is NEVER not useful, if your opponent plays an aggro deck, it will copy smaller-minions you can use to contest their board. Urgh.
PS: Finally some new low-level legendaries. Really wish we'd get more of those..