This is the Kalimos Primal Lord HS Shaman Card from the Journey to Un’Goro expansion due for release in April.
It’s a Shaman legendary class minion and the card reads: Battlecry: If you played an Elemental last turn, cast an Elemental Invocation.
You can get Kalimos Primal Lord by opening packs from the Journey to Un’Goro set.
What are the Elemental Invocation options/cards?
There are four different effects you can choose from as follows:
Invocation of Fire – Deal 6 damage to the enemy hero.
Invocation of Water – Restore 12 Health to your hero.
Invocation of Earth -Fill your board with 1/1 Elementals.
Invocation of Air – Deal 3 damage to all enemy minions.