Elorit - dispel magic, see what you can knock off. I don't know your path but immolate might have been a good idea. Adhesive web, good call. Don't neglect buffet, though, it could have allowed you to control that fight.

Trovaine - you picked it up in the middle, bud, with the plague and poison. Outlanders will generally have a more difficult time healing those than other characters. Throw those out first, or maybe a dispel, and then lay on a few maledictions. Wither may be good to use against shifters these days, too. If you could have got the blindness off after plague/poison and then one energy drain, Teldasill may not have survived at all unless he had some decent prep items on hand after the fact.

Teldasill - nice hit and run, man, good showing. Way to take it to them while terribly outnumbered.