CoS:Reloaded Gargoyle

False Appearance. While the gargoyle remains motionless, it is indistinguishable from an inanimate statue.

Hot Shift. If the gargoyle takes fire damage, it glows with heat until the end of its next turn. While glowing, its claws deal an additional 1d4 fire damage on a hit. While glowing, the gargoyle gains vulnerability to cold damage and immediately stops glowing if dealt cold damage.

Cold Shift.If the gargoyle takes cold damage, it ices with frost until the end of its next turn. While iced, its claws deal an additional 1d4 cold damage on a hit. While iced, the gargoyle gains vulnerability to fire damage and its ice vanishes if dealt fire damage.

Stone Body. If the gargoyle takes cold damage while glowing, fire damage while iced, bludgeoning damage from a critical hit, or damage from the shatter spell or similar magic, the gargoyle's wings snap off, causing it to lose its fly speed.

Grappler. The gargoyle has advantage on attack rolls made against a creature it has grappled.

Multiattack. The gargoyle makes two attacks: one with its bite and one with its claws.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage.

Claws. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage. Instead of dealing damage, the gargoyle can grapple the target (escape DC 13).