God Among Gods. Zeus has advantage on saving throws against spells and actions that would cause him to act against his will, and immunity to spells that attempt to change his form against his will.

Olympian Power. All attacks made by Zeus count as magical attacks.

Innate Spellcasting. Zeus' innate spellcasting ability is Intelligence (spell save DC 22, +10 to hit with spell attacks). He can innately cast the following spells, requiring no material components:
At will: gust, shocking grasp, thunder clap, thunder wave, lightning bolt, gust of wind, shapechange.
3/day each: control winds, storm sphere, chain lightning, control weather.
1/day: true polymorph.
1/week: wish.

Legendary Resistance (3/Day). Whenever Zeus fails a saving throw, he can choose to succeed instead.

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

Lightning Rod. While within his presence, any creatures he chooses that are wearing metal armor are considered to have vulnerability against lightning damage unless they are immune to lightning damage. Creatures that are resistant to lightning damage take neutral damage.

Names Have Power. As with most gods, Zeus has the ability to tell whenever anyone speaks his name, regardless of where they are.

Multiattack. Zeus can make any combination of 4 punch attacks or spear attacks.

Thunder Punch. Melee Weapon Attack: +10 to hit, reach 5 ft., 1 target. Hit: 42 (4d12 + 15) bludgeoning/lightning damage. The creature must make a DC 22 strength save, or be sent prone.

Lightning Spear. Ranged Weapon Attack: +12 to hit, range 10/50 ft., 1 target. Hit: 57 (5d12 + 20) lightning damage.

Thunderous Transmission. By sacrificing his movement action, Zeus can instead cast the teleport spell to any location he can see, which also summons a bolt of lightning that strikes the location he appears at. This lightning bolt deals 3d12 lightning damage to anybody within 5 feet, or half as much on a DC 19 DEX save.

Zeus can take 3 legendary actions, choosing from the options below. Only one legendary actions can be used at a time and only at the beginning of another creature's turn. Zeus regains spent legendary actions at the start of his turn.

Imbue Lightning. Zeus can imbue all magical or non-magical weapons that he or an ally is wielding with thunderous power. The next attack with that weapon deals an additional 3d12 lightning damage.

Lightning Strike (Costs 2 Actions). Zeus can call down a bolt of lightning to strike any three creatures that he sees, dealing 3d12 lightning damage, or half as much on a DC 19 DEX save.

Thunderstorm (Costs 3 Actions). Zeus can summon a thunderstorm, which obscures the sky above them within a 1 mile radius. At the end of each creature's turn, this storm attempts to strike three random enemy creatures with lightning, dealing 3d12  lightning damage, or half as much on a DC 19 DEX save. This persists for one full round.