To clarify, this has a pretty high skill ceiling with potential high value. It's not just "HURRR DURR OP CARD PLAY ON CURVE WIN GAME" but there's some planning that goes into playing this. 1 dmg AOE for 2 mana is pretty good on its own but has the potential to be ridiculous value.
Today in my free brawl pack I got Barongeddon, then I had a cup of fresh green tea. As a result of that, I think Priest is OP because my keyboard is not a mechanical one. I hope Blizzard will address this issue.