Elysius

"You have pursued me all this time, you have struck down those close to me, and all for what? Perhaps I'll give you what you want, but then again, I didn't achieve all this just for it to waste away meaninglessly..."

Elysius is a Post-Alyssika Superboss that is summoned with the Core of the Shattered Universe. He is incredibly difficult to fight, requiring very precise movements and attacks.

Phase 1

 * Stationary, player has Tattered Wings debuff
 * Releases a flurry of metal hooks at the player
 * Creates flame wheels like those seen in the Dungeon
 * Fires streams of lasers at the enemy
 * Summons enemies to fight the player
 * Attempts to dash into the player

Phase 2

 * No longer stationary and player looses the debuff
 * Dashes at the enemy like the Eye of Cthulhu