You unlock Onyx Bishop by defeating the first boss in the Opera, Julianne. This second wing in the adventure released in the second week. It’s another fun battle and carries on the storyline, and on normal mode it’s way too easy so don’t worry.
I completed it easily with a cheap Zoolock deck. All you have to do is kill the 4/2 minion on board to destroy the immunity from Julianne. You can do this with just about any deck, so don’t worry if you only have basic cards.
The card reads: Battlecry: Summon a friendly minion that died this game.
Looking at this card, it’s decent. I can see it being played in Priest decks, and along with Priest of the Feast it’s another step in the right direction to strengthing the Priest class.
Going to be fun playing around with this card, and having Resurrect in the deck to that’s 4 resummons.