Chameleos

Legendary resistance (1 per turn). If Chameleos lose an ability saving throw with an imposing status effect, he can choose to succeed instead.

Toxic aura. The air around Chameleos is very toxic, all creatures around 30 ft radius around Chameleos that start their turn there must do a DC 22 CON Saving throw, on failure the affected targets take 28 (8d6) poison damage and get the poisoned status, on success the targets only take half damage. The targets can repeat the save at the end of their next turns to remove the poisoned status.

Poison heal. When Chameleos is damaged by poison it heals that amount instead.

Multiattack. The Chameleos does one bite, one tail and one tongue lash attack.

Bite. 1 target, 10 ft. Range. Melee weapon attack +14 to hit. Hit: 35 (8d6 +7) [Bludgeon] and [Pierce] damage.

Tail. All targets in 10 ft radius around Chameleos. Melee weapon attack +14 to hit. Hit: 25 (4d8 +7) [Bludgeon] damage.

Tongue lash. 1 target. 30 ft range, Ranged weapon attack +14 to hit. Hit: 14 (2d6 +7) [Bludgeon] damage. Target must do a DC 22 Con Saving roll, on failure the target will get paralyzed and prone. The target can repeat the saving thrown at the end its turns to remove the paralyzed and prone status.

Toxic breath. Recharge (5-6). Chameleos exhales its toxic breath in 60 ft. Cone. The targets inside the cone must do a DC 22 Con saving throw, on failure the targets take 45 (10d8) poison damage, gets poisoned and while poisoned the targets will get 10 (3d6) Poison damage each of its its turns. Targets can repeat the roll at the end of its turns to remove the poisoned status.

Body Slam. Recharge (6). Chameleos stands on its back feet and then press forward, then returns to its position. All targets on a 15 ft circle. Targets must do a DC 22 Dex saving throw on failure targets will take 80 (20d6) bludgeon damage will get prone and get restrained for 1 turn.

Camouflage. Chameleos will get invisible until its next turn or next attack.

Emergency evasion. Upon receiving damage Chameleos get invisible and moves up to 40 ft to empty space. Chameleos will get invisible until its next attack.

Legendary actions. Chameleos can perform up to 3 legendary actions per turn. Only one legendary action option can be used at a time and only at the end of another creature's turn. Chameleos regains all the spent legendary actions at the begging of its turn.

Toxic cloud (1 action). Chameleos release a toxic cloud, the cloud covers a 10 ft square, the cloud is acts as hard terrain and any creature that ends its turn there will take 5 (1d10) [Poison] damage.

Camouflage (1 action). Chameleos will get invisible until its next turn or next attack.

Tongue lash (1 action). Chameleos does 1 tongue lash.