Unfortunately don't have screenshots as I didn't expect to need them and after it happened I was so shocked I forgot before exiting out of battle log.

While I was fighting a Scorched Reef Lighira, this happened

Turn 10: Layla has defeated Scorched Reef Lighira!!!

I felt bad, of course, it being a fabled and all. But then I noticed something strange. I looked at the damage above to see if my tank had critted, but she hadn't. She'd done the normal 1,226 damage.

The Lighira had said on it's health bar it had 2,500 and something

So I searched the rest of the battle log for that turn, seeing if any passive damage had been done by my fire/light, but the only instances of damage on my team was from the ligh. So not sure what happened there, thought you should know

Unfortunately, without being able to see the whole battle log and the remaining health before the turn, there really isn't anything that I can investigate. My best guess is just that the remaining health was misread or a source of damage was missed.

You guys have done tens of millions of battles with the current code, so I would assume any bug like that would have been discovered and reported by now.

If you do happen to notice this again or can forcibly reproduce it, please let me know and provide as much information as you can - screenshots, video capture, etc. Without that though, I don't have anything to investigate or look into, sadly.