Gravitational Pull. When a creature comes within 60 feet of the Crusher for the first time or ends their turn there, they must succeed a DC 18 strength saving throw or be pulled 5 feet toward the Crusher. If this would cause the creature to enter the Crusher's space, the creature takes 9 (2d8) bludgeoning damage. 

In addition, the Crusher is considered gargantuan for the purposes of effects that would move it against it's will or knock it prone. The Crusher takes no damage from falling.

Innate Spellcasting. The Crusher's innate spellcasting ability is intelligence (spell save DC 15). It can innately cast the following spells, requiring no material components:

1/day: plane shift, reverse gravity

Magic Resistance. The Crusher has advantage on saving throws against spells and other magical effects.

Gravitational Slam. Melee Weapon Attack: +10 to hit, reach 5 ft., 1 target. Hit: 24 (4d8 + 6) bludgeoning damage, and the target is grappled (escape DC 18). While grappled in this way, the creature is restrained by gravitational force. 

Gravity Manipulation. The Crusher manipulates the way gravity works on up to three creatures of it's choice within 60 feet of itself. The creatures must succeed a DC 18 strength saving throw or fall in a direction of the Crushers choice, obeying the normal falling rules. When a creature falls 60 feet, it immediately stops falling, and falls prone. 

Creatures grappled by the Crusher have a disadvantage on the saving throw.