Anaxim

Regeneration. The anaxim regains 10 hit points at the start of each of its turns, so long as it has 1 hit point.

Divine Resistance. Whenever the anaxim fails a saving throw, it can choose to succeed instead. Whenever the anaxim succeeds on a saving throw in this manner, it regains two less legendary actions at the start of its next turn.

Titan. As a titan, the anaxim's attacks are considered magical, it has advantage on saving throws against spells and other magical effects, it cannot have it's form changed against its will, and it cannot be targeted by divination magic or be perceived through scrying sensors.

Multiattack. The anaxim makes three attacks: one with its Spinning Blades, one Spike attack, and one with its Shocking Touch.

Spinning Blades. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit: 24 (3d10 + 8) slashing damage.

Spike. Melee or Ranged Weapon Attack: +15 to hit, reach 5 ft. or range 120 ft., one target. Hit: 15 (2d6 + 8) piercing damage.

Shocking Touch. Melee Weapon Attack: +15 to hit, reach 5 ft., one target. Hit: 17 (2d8 + 8) lightning damage. If the target is a creature, it must make a DC 20 Constitution saving throw or be blinded until the end of the anaxim's next turn.

Spellcasting. The anaxim casts one of the following spells requiring no material components, using Constitution as the spellcasting ability (save DC 20):
At will: blur, dispel magic, greater invisibility, etherealness

Sonic Blast. The anaxim emits a 60-foot cone of deafening sound. Each creature in the affected area must make a DC 20 Constitution saving throw, taking 70 (20d6) thunder damage and become deafened for 1 minute on a failed saving throw. An affected creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. On a successful save, an affected creature takes half as much damage and is not deafened.

Summon Construct (Recharge 5-6). The anaxim summons an iron golem into an unoccupied space it can see within 300 feet of it. An iron golem summoned in this way acts in initiaitve immediately after the anaxim. The anaxim can take this action 4 times per Long Rest.

The anaxim can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The anaxim regains spent legendary actions at the start of its turn.

Strike. The anaxim makes a Spinning Blades attack.

Show of Force (Costs 2 Actions). The anaxim makes a Shocking Touch attack, or uses Spellcasting.

Summon Golem (Costs 3 Actions). The anaxim recharges, or uses its Summon Construct action.