Annoying to the point where I wouldn't want it in-game. It counters decks that use card-strategies reliant on combos of cards or playing cards in certain situations (permanent or creature control spells, miracle, fractal, bonewall combos (of which there are ridiculous amounts), flying weapons decks, decks that rely on quintessences, just to name a teeny tiny few). It's one card that counters too many others. Wings is at least weak to perm control, being stolen especially, airborne creatures, momentum, etc. etc.
This card, if played early, is only vulnerable to early CC, and with adrenaline or with 1+ others, is just horrid, lol.
I have the feeling it would cripple too many decks, and make rushing even more popular (My rush decks steadily win the most in pvp), and interesting card synergies and strategies even less so, which makes me sad.