Starstorm

Starstorm is an event that can only be encountered in multiplayer War Mode, after the Spirit of Light has been defeated. It requires one player to have a Meteor Staff, another to have a Daedalus Stormbow and Holy Arrows, and a third to have a Lunar Flare. All must be used at the same time in space or Heaven. Triggering it in Heaven causes the Celestial Starstorm. WARNING: If you and the other players on die, this event ends and the enemies vanish in a large white spark. It takes longer to respawn while this event is in progress. The event start message is "The [area you are in] is enraged!"

Standard Starstorm

 * Stardust Pillar enemies
 * Star Dragon
 * Star Shooter

Bosses

 * Star Queen
 * Star King
 * Stardust Paladin

Celestial Starstorm

 * Same as Standard


 * Angelic Starshooter
 * Angel Guardian
 * Angelic Warrior
 * Angel Archer

Bosses

 * Same as Standard


 * Palutena
 * Icarus
 * Kana
 * Zeus
 * Odin
 * The Last Prismancer (At 99% [When he spawns, all other enemies die, dropping loot])

Standard

 * Star Crown (From Star King[35.5%])
 * Star Tiara (From Star Queen[35.5%])
 * Stardust Paladin's Hammer (45%)
 * Stardust Paladin's Shield (40%)
 * Stardust Fragments (From All [20%{In stacks of 5-10}])

Celestial

 * Same as Standard
 * Palutena's Blessing (30%)
 * Wings of Icarus (40%)
 * Kanade's Outfit (From Kana [1 Piece per Kill])
 * Zeus's Lightning Bolts (99.5%)
 * Odin's Outfit (98.4%)
 * Valhalla Knight's Armor (From Odin [50% {1 Piece per Kill}])
 * Ultimate Prism (100%[1 per player {to be fair ;D}])

Trivia
The message when either of these events is defeated is done in the Three Wise Monkeys emojis: 🙈🙉🙊

Most of the bosses introduced in Celestial Starstorm are references to games(Palutena), mythology(Odin, Icarus), or anime (Kana).

The Last Prismancer is a clear reference to the Last Prism obtained from Moon Lord.