TetraxShards
Member
So I just had a match where a Warlock won with Hellfire, killing both of us in the process. It registered as a loss for me, he had 3 health I had 2. Does the one with less health lose or do we both lose?
You both lose, unless it's an Arena game, which counts as a draw (you aren't credited a win or a loss for it).
Edit, from Hearthstone Wiki:
Both heroes' health reaches zero at the same time. This causes a draw, although both players will see the Defeat screen. Neither player will win or lose a star in Ranked play, and neither player will be awarded a win or loss in Arena mode. If you were on a winning streak, it will end your streak.