Guess this is a 4 mana more than a 3 mana where it would end up being better than a class card SI:7 Agent with elemental tag and no combo req. It's a decent pick in arena for classes without ping. Not great constructed card
This is a very good tempo card that fills in the elemental train curve on turn 4, if Elementals become a thing it'll see play. A general rule of Hearthstone is that if a card can remove something while developing something, it's good unless it's super understatted.
This one's kinda weak on its own, but it sets up a turn 5/6 elemental play exceptionally well. It trades evenly with a lone 5 health minion or pick off a small health target looking to trade up. Probably an underrated card, but not a card that's going to appear in every elemental deck.