Multiattack

The golem makes three Slam attacks.

Slam

_Melee Weapon Attack:_ +9 to hit, reach 5 ft., one target. _Hit:_ 21 (3d10+5) bludgeoning damage.

Slow (Recharge 6)

The golem shares the plodding perception of timeless stone with those nearby, slowing all life to a crawl. Each creature within 10 feet of the golem must make a DC 17 WIS save. On a failure, a creature can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the creature can take either an action or a bonus action on its turn, not both. These effects last for 1 minute. A creature can repeat the save at the end of each of its turns, ending the effect on itself on a success.