Actions

Multiattack. Graz'zt attacks twice with Wave of Sorrow.   Wave of Sorrow (Greatsword). Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 20 (4d6 + 6) slashing damage plus 10 (3d6) acid damage.   Teleport. Graz'zt magically teleports, along with any equipment he is wearing or carrying, up to 120 feet to an unoccupied space he can see.

Bonus Actions

Shapechanger. Graz'zt can use his bonus action to polymorph into a form that resembles a Medium humanoid, or back into his true form. Aside from his size, his statistics are the same in each form. Any equipment he is wearing or carrying isn't transformed.   Command. Graz'zt casts the command spell at 6th level.   Conjure Mirror. Graz'zt causes up to 6 Smooth surfaces he can see to become as reflective as a polished mirror. Until the end of his next turn, creatures who can see the surface have disadvantage on Wisdom (Perception) checks and ranged attack rolls, as they are enraptured by the reflection.

Legendary Actions

Graz'zt can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Graz'zt regains spent legendary actions at the start of his turn.   Attacks. Graz'zt attacks once with Wave of Sorrow.   Dance, My Puppet! One creature charmed by Graz'zt that Graz'zt can see must use it's reaction to move up to it's speed as Graz'zt directs.   Sow Discord. Graz'zt casts crown of madness or dissonant whispers.   Teleport. Graz'zt uses his teleport action.  

Mythic Action

If Graz'zt's Demonic Awakening trait has activated in the last hour, he can use the options below as legendary actions.   Kill, My Puppet! One creature charmed by Graz'zt that Graz'zt can see must use it's reaction to make an attack against a target of Graz'zt's choice.   Wink. Graz'zt casts charm person at 1st level without requiring concentration witch lasts until the end of his next turn, the target has disadvantage on the save.

Lair Actions

On Initiative count 20 (losing initiative ties), Graz'zt can take a lair action to cause one of the following effects: he can't use the same effect two rounds in a row:

• Graz'zt casts the command spell on every creature of his choice in the lair. He needn't see each one, but he must be aware that an individual is in the lair to target that creature. He issues the same command to all the targets.
• Smooth surfaces within the lair become as reflective as a polished mirror. Until a different lair action is used, creatures within the lair have disadvantage on Dexterity (Stealth) checks made to hide.

Graz'zt's lair is his Argent Palace.