Nicely done! That mechanic where the awoken boss does damage when healed is fun to use, especially with the spell that also damages based on healing done.
Just had a fun Stygian/Hellhorned run to beat Cov8. Not an easy run, so making the mix of sap/spell weakness/armor I was using work was quite enjoyable. The Seraph fight was the sort where the slightest mistake could doom me and I had to restart it multiple times because I made dumb mistakes like buffed the wrong character or played two cards out of sequence. Getting the railhammer (+4 armor whenever armor applies) saved my bacon or I don’t think I’d have won).
It ended gloriously, though:
