The quasit can use its action to polymorph into a beast form that resembles a bat (speed 10 ft. fly 40 ft.), a centipede (40 ft., climb 40 ft.), or a toad (40 ft., swim 40 ft.), or back into its true form.

Despite their physical frailty, quasits could be fearsomely annoying and maddening to fight, able to wreak havoc and create unending distractions for their adversaries.

The quasit can use its action to polymorph into a beast form that resembles a bat (speed 10 feet fly 40 ft.), a centipede (40 ft., climb 40 ft.), or a toad (40 ft., swim 40 ft.), or back into its true form.

Magic Resistance: The quasit has advantage on saving throws against spells and other magical effects. Actions Claw (Bite in Beast Form): Melee Weapon Attack: +4 to hit, reach 5 ft ., one target.

Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies. Magic Resistance: This unit has advantage on saving throws against spells and other magical effects. This unit is resistant to Cold, Fire, and Lightning damage, as well Bludgeoning, Piercing, and Slashing damage from nonmagical weapons.

Unlike other demons, quasits are formed when a mortal spellcaster sheds a portion of their own sinful soul to create a familiar or companion.

By shape-shifting into harmless but ill-omened creatures or by turning invisible, quasits sneak into places where they spy for villainous masters or set vicious traps. Quasits delight in hiding in dark places and—when least expected—bursting forth to slash foes with their poisoned claws.

Demon, Quasit. Family: Demons. Tiny fiend (demon, shapechanger), chaotic evil. Armor Class 13 Hit Points 7 (3d4) Speed 40 ft.

While the quasit is within 10 feet of its master, the master shares the quasit's Magic Resistance trait. At any time and for any reason, the quasit can end its service as a familiar, ending the telepathic bond.

By shape-shifting into harmless but ill-omened creatures or by turning invisible, quasits sneak into places where they spy for villainous masters or set vicious traps. Quasits delight in hiding in dark places and—when least expected—bursting forth to slash foes with their poisoned claws.