Target happened to be afk, and I had to get way closer because he was on a hill making ground targeting difficult. You can initiate this combo from 900 range and it’s all on a knocked down opponent. Fire Grab did massive overkill but still would have been at least 10k without bolt to the heart (+20% dmg on target below 25% health).
I don’t think this combo was possible until a few patches ago when they fixed the responsiveness of stomp abilities like earthquake.
Feedback appreciated. I realize this is a very cheesy combo.