Stargazer 2014
CR 9 monstrosity
Huge monstrosity, unaligned
STR20 (+5)
DEX10 (+0)
CON18 (+4)
INT3 (-4)
WIS14 (+2)
CHA4 (-3)
Magic Resistance.
Advantage: spell/magic effect saves.
Tendril Whip Regrowth.
Has 12 tendrils. If all are destroyed can't use Tendril Whip. Destroyed tendrils regrow when it finishes long rest.
Bonus Actions
Reel.
Pulls up to 2 creatures grappled by it up to 15 ft. straight to it.
Reactions
Wing Trap Snap.
When 1+ creatures step onto a space on ground within 10 ft. directly above a hidden stargazer stargazer can burrow up to 10 ft. and snap its wing-like appendages shut emerging on the ground in space directly above where it was buried and that contains one or more other creatures. Each creature must make DC 16 Dex save or be trapped as if it failed save vs. Wing Trap.
Source: Tome of Beasts 3 (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details