This is the Ozruk HS Card from the Journey to Un’Goro expansion due for release in April.
It’s a Neutral minion and the card reads: Taunt. Battlecry: Gain +5 Health for each Elemental you played last turn.
You can get Ozruk by opening packs from the Journey to Un’Goro set.
*Elemental synergy, pretty situational so we will need to see more Elemental cards before deciding how powerful this card is.