Out of Character Thread 2
While we wait, and hope that Oraphina has some healing left, I will note that if Grune is a life cleric, his Cure Wounds is good for 1d8+6 or thereabouts while Healing Word is 1d4+6, so a max of 24 hp.
And looking at the "duel" round 1 the half-dragon did 10 damage with his sword and missed with his spear. Round two was 15 damage with his sword. And this time he has three friends!
Perhaps, we can figure out a way to ambush him? Get him to come up the stairs alone?
Korym has some ball bearings and caltrops, the former can knock someone prone on DC 10 DEX (pretty easy to make) the latter on a failed DC 15 DEX make the creature stop for that round and move 10 feet slower afterwards until they are healed.
If we can catch him unaware, a couple of attacks with advantage couldn't hurt!