Tonguez
A suffusion of yellow
Lair actions are awesome - Lair reactions even awesomerThis reminds me of the RPG Feng Shui, which, if I recall correctly, suggested creating a list of bullet points of wacky things that could happen in a fight scene. For example, if the scene was a junkyard, then someone should get hit by a wrecking ball, a big magnet should pick up and drop cars, there should be a junk avalanche, etc.
In 5e some of those could be lair actions, or even lair reactions!