Animated elemental armor

Spellcasting. The Animated Elemental Armor is a 20-level spellcaster. Its spellcasting ability is Wisdom spell save DC 18, +8 to hit with spell attacks. The Animated Elemental Armor has these spells prepared:
Cantrips (at will): firebolt, burning hands, feather fall , fog cloud, magic missile, gust of wind, scorching rays, counterspell, fireball, water breathing, controls water , fire shield, ice storm, stone shape, stone skin , wall of fire, cloud kill, cone of cold, conjure elemental, wall of force, wall of stone, flesh to stone, freezing sphere, delayed fireball, prismatic spray, teleport, anti magic field, incendiary cloud, meteor swarm, prismatic wall

Action Melee Attack. Slap Attack: +4 to hit, reach 5 ft., 1 target. Hit:  (3d3 + 4) bludgeoning damage. 

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