This is the Jungle Giants HS Druid Quest Card from the Journey to Un’Goro expansion due for release in April.
The card reads: Quest: Summon 5 minions with 5 or more Attack. Reward: Barnabus.
Barnabus the Stomper
This is the Barnabus the Stomper HS Card from the Journey to Un’Goro expansion due for release in April.
It’s a Druid class minion and the card reads: Battlecry: Reduce the Cost of minions in your deck to (0).
You can get Jungle Giants by opening packs from the Journey to Un’Goro set.
If you want to know more about how the Quest keyword works check out this post.