Clockwork Titan

Clockwork Synergy. This clockwork creature always knows its masters next move and takes its turn immediately after its creator

Dense Body. The titan takes 8 less damage from any source per hit.

Defensive Wall. The titan readies itself to defend by forming into a wall 15 ft. long and losing movement, increasing its AC to 26 until it drops this form. it takes a bonus action to drop this form. 

Slam. Melee Attack: +14 to hit, reach 5 ft., 1 target. Hit: 11 (2d10 + 10) bludgeoning damage. 

Grappling Smack. Melee Attack: +14 to hit, reach 5 ft., 1 target. Hit: 10 (2d8 + 10) bludgeoning damage. and the target makes a grapple check on failure becomes grappled.

Goading Blast. In a 40ft cone any enemy creatures make a DC 20 wisdom save on a failure all attacks against a creature other than the titan is at disadvantage.

Gravity Well. once per day in a 60 sphere all enemy creatures make a DC 20 strength saving throw or are pulled 30 ft towards the titan and take 4d8 force damage.

Drop Wall Form. The titan returns to normal form.

Protect Master. If this titan's master is within 10 ft. it can take an attack in its place.