Trook spawns during night, in Giant tree taiga (or in Jungle), hanging under the leaves of the giant spruce tree. Their body is covered with 4 leaf-like petals.
They will attack you when you are under them, by shooting their tentacles to you, and pull you up slowly. You are unable to jump and walk when pulling. When the player is pulled near it, Trook will open their petals, showing their mouth and bite it. If the player kill them or the trook retract its tentacle when been pulled up, the player will fall.
It's tentacle can't be hit, but you can block their tentacle with shield, and they will retract their tentacle after blocked. If they been hurt, 30% rate they retract their tentacle and fly to the other tree.
Sticks, maybe very rarely drop 'trook petal', that can be craft into petal boots (maybe give you 5 sec of slow-falling when falling)
Thanks for seeing my suggestion :D