Traits
Shapechanger
The slaad can use its action to polymorph into a Small or Medium humanoid, or back into its true form. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.
Magic Resistance
The slaad has advantage on saving throws against spells and other magical effects.
Regeneration
The slaad regains 10 hit points at the start of its turn if it has at least 1 hit point.
Spellcasting
Innate Spellcasting
The slaad's innate spellcasting ability is Charisma (spell save DC 12). The slaad can innately cast the following spells, requiring no material components:
detect magic, detect thoughts, mage hand
fear, invisibility (self only)
Actions
Multiattack
The slaad makes three attacks: one with its bite and two with its claws or staff. Alternatively, it uses its Hurl Flame twice.
Bite (Slaad Form Only)
Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing damage.
Claw (Slaad Form Only)
Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) slashing damage.
Staff
Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.
Hurl Flame
Ranged Spell Attack: +4 to hit, range 60 ft., one target. Hit: 10 (3d6) fire damage. The fire ignites flammable objects that aren't being worn or carried.