Savage Wombat
Hero
I made him immune to sunlight damage (not radiant damage) as long as the heart was intact. Didn't save him, though.
I like Quickleaf's idea of replacing the lord of the castle. For example, Escher the vampire spawn is upgraded to full vamp status - and, due to the nature of the plane, gets immediately possessed by the lingering spirit of Strahd.
Of course, now you need to figure out why the same tricks won't work twice.
(Personally, I tend to go the Matt Mercer route - no, the big boss monster of the campaign isn't going to be lured out from behind his Lair Actions to fight you on your terms. That's not how this works.)
I like Quickleaf's idea of replacing the lord of the castle. For example, Escher the vampire spawn is upgraded to full vamp status - and, due to the nature of the plane, gets immediately possessed by the lingering spirit of Strahd.
Of course, now you need to figure out why the same tricks won't work twice.
(Personally, I tend to go the Matt Mercer route - no, the big boss monster of the campaign isn't going to be lured out from behind his Lair Actions to fight you on your terms. That's not how this works.)