Silkfang

Hyper Fixated. In its Webbed Dome, the Silkfang has a passive perception of 20 on anything that moves within 50 ft underneath the Dome.

Strung. In its Webbed Dome, the Silkfang cannot take fall damage, or be effected by rough terrain while it is conscious and its 20 strings are attached to the top of its body and the Webbed Dome. This monster can not fall more than 50 ft below its dome without severing its strings, if this happens while the monster is unconscious it takes (intervals of 10ft)d6. For example; if the Silkfang falls 30 feet, the Silkfang takes 3d6 whiplash damage.

Spellcasting. This monster cannot cast spells.

Poison Spray. The Silkfang unhinges its jaw to spew a 15ft cone, of paralyzing poison making all players hit make a dexterity saving throw. A target takes 2d8 poison damage on a successful save, on a failed save they also lose all of there movement in the next round. The Silkfang has 1 charge of Poison spray, it can make a d6 roll at the start of its next turn, on a 4-6 it replenishes the poison spray, on a 1-3 it replenishes the poison spray at the start of its next turn.

Lashing Attack. Melee Attack: +5 to hit, reach 10 ft., 1 target. Hit: 13 (2d8 + 4) Slashing damage. The creature lashes out with its long spindly but surprisingly strong raptoriales.

Bite Attack. Melee Attack: +4 to hit, reach 5 ft., 1 target. Hit: 17.5 (1d12 + 2) piercing damage, and (2d8) poison damage.

Stringed Leap. As a bonus action, the Silkfang can move 15 ft vertically as it pulls on its strings. The Silkfang can choose to return to the ground at any time during its turn, it does not have to as it can stay in the air for prolonged periods of time, but does not have a horizontal speed while suspended in this way.

Reaction. The Silkfang can make a Lashing Attack as a reaction, when a creature leaves its 10ft attack range.