Fey Ancestry. The elf has advantage on saving throws it makes to avoid or end the charmed condition on itself, and magic can't put it to sleep.
Unusual Nature. The elf doesn't require sleep.
Spellcasting. The elf casts the following spell, using Wisdom as the spellcasting ability:
2/day: teleport
Multiattack. The elf makes two Longsword or Longbow attacks.
Longsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit:5 (1d8 + 1) slashing damage, or 6 (1d10 + 1) slashing damage when used with two hands, plus 14 (4d6) radiant damage.
Longbow. Ranged Weapon Attack: +5 to hit, range 150/600 ft., one target. Hit:6 (1d8 + 2) piercing damage plus 14 (4d6) radiant damage.
An astral elf commander leads warriors into battle and usually has one or more spelljamming ships under their command. A commander channels the radiant energy of starlight through their weapons, and they can rescue warriors from a perilous situation by using their gods-given power of teleportation.