Shadow Melt. The Roamer melts into a shadowy substance allowing it to move freely without provoking opportunity attacks. This ability recharges after the Roamer deals at least 20 damage.

Multiattack. The Roamer makes two attacks: one with its lunge and one with its claws.

Claws. Melee Attack: +7 to hit, reach 5 ft., 1 target. Hit: 11 (#1d10 + 3) piercing damage. 

Lunge. Melee Attack: +5 to hit, range 10 ft., 1 target. Hit: 12 (1d12 + 1) bludgeoning damage. The target must succeed a DC 12 Strength saving throw or be stunned until the start of its next turn.

As a bonus action, the Roamer can melt into its Shadow shape and move up to 10 ft. This ability recharges after the Roamer deals at least 20 damage.

Side Step. When a creature within 5 ft. makes a melee attack, the Roamer jumps sideways 5 ft. on a successful DC 13 Dexterity saving throw without provoking an opportunity attack. On a failure, the Roamer takes an additional half of the damage dealt to it.