Clay Golem

The Clay Golem has advantage on saving throws against spells and other magical effects.

Whenever the Clay Golem starts its turn with 60 hit points or fewer, roll a . On a 6, the Clay Golem goes berserk. On each of its turns while berserk, the Clay Golem attacks the nearest creature it can see. If no creature is near enough to move to and attack, the Clay Golem attacks an object, with preference for an object smaller than itself. Once the Clay Golem goes berserk, it continues to do so until it is destroyed or regains all its hit points.

The Clay Golem is immune to any spell or effect that would alter its form.

The Clay Golem's weapon attacks are magical.

Whenever the Clay Golem is subjected to acid damage, it takes no damage and instead regains a number of hit points equal to the acid damage dealt.

+9 to hit, range 5 ft. Hit: 16 (2d10 + 5) bludgeoning damage. If the target is a creature, it must succeed on a saving throw or have its hit point maximum reduced by an amount equal to the damage taken. The target dies if this attack reduces its hit point maximum to 0. The reduction lasts until removed by the Greater Restoration spell or other magic.

Until the end of its next turn, the creature magically gains a +2 bonus to its AC, has advantage on Dexterity saving throws, and can use its Slam attack as a bonus action.

The Clay Golem makes two Slam attacks.