This is the Small Raptor HS Hunter Card from the Journey to Un’Goro expansion due for release in April.
It’s a Hunter class minion and the card reads: Deathrattle: Shuffle a 4/3 Raptor into your deck.
You can get Small Raptor by opening packs from the Journey to Un’Goro set.
Raptor
The Raptor only costs 1-mana, so there is some synergy with cards like Tol’Vir Warden for some decent value.