Bit more Un'Goro information:
The other four Adapt effects were revealed. They are +1/+1, Poison, +3 Health, and Stealth until your next turn.
Spoiler: Big Gentle Dinosaur4 mana 5/4 Rare Neutral Beast. Battlecry: Adapt your Murlocs. Should actual Murloc decks become a thing, this might see play. I personally hope so, Murloc Rush is one of the more entertaining aggro decks.
Also confirmed that there will be two Legendary cards per class (ugh), one minion and one Quest.