This is the Flame Geyser HS Mage Card from the Journey to Un’Goro expansion due for release in April.
It’s a Mage class spell and the card reads: Deal 2 damage. Add a 1/2 Elemental to your hand.
You can get Flame Geyser by opening packs from the Journey to Un’Goro set.
*The 1/2 Elemental should cost 1-mana, so I think this card will see play.