Multiattack

The golem makes two slam attacks. Alternatively, it uses its Steel Shot twice.

Slam

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage.

Steel Shot

Ranged Weapon Attack: +7 to hit, range 30/120 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.

Scattershot (Recharge 5-6)

The golem's body explodes. Each creature within 15 feet of the golem must make a DC 15 Dexterity saving throw. On a failure, a creature takes 36 (8d8) bludgeoning damage and is knocked prone. On a success, a creature takes half the damage and isn't knocked prone. The golem immediately scatters.