Floating Island

Gargantuan elemental, unaligned

Armor Class

20 (natural armor)

Hit Points

280 (16d20 + 112)

Speed

0 ft., fly 90 ft. (hover)

Skills

Perception +10

Damage Resistances

cold, fire, lightning, psychic; bludgeoning, piercing, and slashing from nonmagical attacks

Damage Immunities

poison

Condition Immunities

charmed, exhaustion, paralyzed, petrified, poisoned, prone, stunned

Languages

Primordial

Challenge

17

False Appearance

The floating island is indistinguishable from a regular floating island.

Magic Weapons

The floating island's weapon attacks are magical.

Siege Monster

The floating island deals double damage to objects and structures.

Actions

Multiattack

The floating island makes three attacks: one of which can be a rock attack.

Vine Strike

Melee Weapon Attack: +13 to hit, reach 20 ft., one target. Hit: 25 (4d8 + 7) slashing damage and the target is grappled (escape DC 21). Until the grapple ends, the target is restrained and has disadvantage on Strength saving throws, and the floating island can't use the same vine on another target.

Throw Rock

Ranged Weapon Attack: +13 to hit, range 80/320 ft., one target. Hit: 33 (4d12 + 7) bludgeoning damage.