Cloaker

A midnight blue manta ray with a bony tail and crescent-shaped maw above its belly. It swoops through deep, lightless caverns.

AC 13, HP 28, ATK 3 lash +4 (1d8) or 1 screech, MV near (fly), S 2, D 3, C 1, I 1, W 1, Ch 0, AL C, LV 6

Phantoms. 1/day, in place of attacks. Create 3 illusory duplicates that disappear when hit. Determine randomly if an attack hits cloaker or illusions.

Screech. Enemies within double near DC 15 WIS or DISADV on attacks and checks 1d4 rounds.