For me, I’ve got a plethora of rooms I’ll be avoiding because of how annoying they are getting.
Bulette Lair (Dragging and Devour chance? No)
Worm Tunnel (CURSE YOU RNG!)
Levithan (Nothing more crippling than losing all buffs and dragged. Also low chance upgrade despite being a Legendary room)
Gar’nok (Same as class event, such a pain to kill)
Witches Coven (Night Hag says Toad)
Faiery Court (Toadstool changes you to it)
Dust Tunnel (Dust Devils with right away dragging? At least their damage sucks)
Goblin Throne (You wanted Dexterious Enemies for winning instead of Agile Enemies? Granted!) (20% + 20%)
Yeah… all those rooms suck either because of dragging, devour or being a major pain to kill without you being utterly murdered.