Bracken

There is debate on the genus to which the Bracken belongs. It is a bipedal vertebrate with skin the color and texture of a red beet. The name is coined for what appear to be leaves protruding from its upper spine. The purpose of these is believed to be intimidation, however not much is known about the specifics of bracken behavior due to its elusiveness and low population. We know a little from accounts by wildlife experts who have encountered it. It is a lone hunter with high intelligence. Its behavior can seem aloof; it exhibits high aggression even when unprovoked, yet quickly backs off when confronted. However, brackens are known to up their hostility when cornered or simply watched for a long time. It's theorized that upon death their bodies undergo a rapid decomposition process which is unique from other large animals.

Visually the Bracken is a bunch of roots making a humanoid-like figure, with a huge flower on it's back. it has giant claws and wide, white eyes. it likes to watch it's prey before snapping it's neck and killing it, dragging it into a black abyss

The Brackens Lair looks like a regular living room spawned in the middle of a regular cave.

Multiattack. The Bracken makes two Slash attacks.

Slashing. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d10 + 3) slashing damage.

Grab and Drag. If Bracken approaches from the back it can try to grab you and roll a CON 16 save if failed the Bracken grabs you by the mouth and makes you fall asleep, and grabs you, after which its movement is doubled, but it cant take a dash action. it takes you to its lair, but while doing so all creatures have a disadvantage on attack rolls against it

Shadow Teleport. The Bracken can teleport from shadow to shadow if it's obscured in shadow. if the Bracken has been watching after the players for more than 10 rounds it can teleport into the player's shadow.

Eye Contact. If The Bracken is noticed while trailing the players, it won't attack them if the players make very brief eye contact, ask your players to roll a performance check of DC 13, the dc goes up by one each time they encounter the Bracken

Lair. If the Bracken brings the player into the lair, the player falls unconscious and must start rolling death saves, if someone enters the lair while the bracken is present, the fight is inevitable. in the lair the bracken loses it's ability to teleport instead gaining +2 to armor class and advantage on all attacks