We’ve learned a lot about hero cards since we launched the Death Knights. In general, we like them to either have a fair amount of variance in their gameplay or to have their hero powers be at a power level more in line with Justicar Trueheart than, say, Bloodreaver Gul’dan. Zul’jin is a good example of this. There’s some wiggle room here, but the core idea is that we don’t want the hero power to drown out the rest of the cards that you’re playing.

With each expansion, we’re going to continue to make powerful cards – a card being powerful isn’t necessarily a reason for us to change something. The most important thing here is that the game doesn’t feel hopeless or inevitable. I think the variance in Dr. Boom’s and Hagatha’s hero powers helps a lot there. You could get lucky, your opponent might get unlucky, and there’s still a lot of gameplay back and forth between you after those are played. It’s meaningfully different from some of the very powerful and more repetitive hero powers we’ve seen in the past.

For the other question, will we change them, that’s more a question of how things shake out in the metagame. Things have been changing rapidly over the last couple weeks. Just looking at hsreplay, Warrior is around the fourth best class right now (and Shaman is fifth), so let’s see how things evolve. We don’t think that Dr. Boom feels inherently bad to play against and it doesn’t seem like a huge balance outlier right now, so we’re going to let things develop before we make a call on card changes.