So I tried to see if I could complete Fire Knight 17 with the following team: Vogoth (L), Pythion, Runic Warden, Tyrel, Ronda.

However, I found that Fire Knight was able to kill Runic and Ronda, but when Pythion revived them each had only around 5% HP on revive. This happened a couple of times before I abandoned the battle.

Just thought I'd mention this, because it looks like a bug as I presume Pythion hasn't been nerfed already.

I played using the Plarium Play app on PC.