The Ancients

The Ancients are a group of post-Moon Lord bosses. They can be fought after Azana has been defeated and they can be fought anywhere at any time of the day. They are the current final bosses of the mod.

Summoning
They do not spawn on their own and are summoned by either clicking Question from the Storyteller after Azana has been defeated or can be summoned by using a Resurrection Sigil.

Phase 1
Krechus


 * Spawns with an invulnerable ring of blades.
 * Dashes at the player.
 * Every few seconds, performs one of four attacks:
 * Horizontally dashes at the player.
 * Summons a wall of blades.
 * Stops and summons multiple blades which move horizontally.
 * Circles around the player, creating an arena.

Kirvein
 * Shoots green arrows at the player.
 * Below 50% health, fires a burst of four arrows instead.
 * Shoots a super-charged arrow, leaving a trail of explosions.
 * Fires a missile into the air, which splits into six homing missile and explode after a few seconds.

Xernon


 * Shoots water bolts at the player.
 * Below 60% health, water bolts explode upon contact with the player.
 * Below 30% health, explosions release a burst of six water bolts.
 * Every few seconds, flies above and below the player, releasing water bolts.

Izaris
 * Flies above the player and avoid contact.
 * Summons energy seekers, which occasionally charge at the player.
 * Summons crystal serpents which attempt to ram the player.

Upon defeating all four of them, the crystals will rearrange to the Ancient Amalgamate.

Phase 2 - Ancient Amalgamate
The Ancient Amalgamate has 11 different attacks to choose from at different stages of health, sometimes using more than one attack at once


 * He flies around and swings his hands at the player, similar to Skeletron, but faster.
 * He spins his hands around, creating a crystal shield which reflects all projectiles.
 * Teleports to the sides of the player and charges at them.
 * Occasionally, he will disappear shortly and creates projections of the ancients which deal contact damage, move up and down, left and right.

Above 50% health:
 * Moves around and creates crystal clusters which that appear around the player.
 * Shoots down homing projectiles from above.
 * Shoots out circles of crystalline kunais.

Above 25% health:
 * Creates a galaxy of kunais.

Under 50% health:
 * Occasionally shoots exploding projectiles.
 * Teleports around the player and shoots at them.

Under 25% health:
 * Shoots both exploding projectiles and cluster attack.
 * Creates a flower pattern of crystalline kunais.

Aftermath

 * After the Ancient Amalgamate has been killed, A Shock wave will send the player back a few blocks, shortly after the shock wave has passed you, up to and some Super Healing Potions will appear. Shortly after, you will be sent into a credit scene.

Trivia

 * The theme of the first phase is called "Forgotten Resurrection" and was composed by Universe.
 * The second phase currently shares the same theme.
 * If the player turns on Autopause when the fight starts, the Ancients will display a unique quote.

Lore
Many millenia ago, when Terraria was anew, a curious energy anomaly had borne the Ancients deep underground from elemental crystals through an unholy ritual. Their very beings threatened Terraria when they emerged from the earth, as although they had terrifying combined power already, they suffered an insatiable appetite for power. During their odyssey for power, they confronted an omnipotent primordial being known only as Abraxis, who granted them incomprehensible power, but warned them of using the power against Terraria or there would be most severe consequences. A deal the Ancients could not resist.

The Ancients devised a plan out of Abraxis' sight to destroy Terraria, and unearthed a forbidden ritual that produced a hungering infection that sought to obliterate the universe and all of its life itself, planting the infection into a poor unsuspecting soul. When Abraxis found out not too long later, he was furious, robbing them of their vitality and sealing it away for eternity, its physical form only to come into fruition should several incomprehensibly powerful sources intersect.

The Ancients were left only as mere wisps of consciousness lost among an abyss, and so the wisest of the Ancients, Izaris, formulated a tactical plan. The Ancients crept from their hiding spot and, to avoid the wrath of Abraxis that would inevitably be the fall of them, warped together into the form of a meekly old Terrarian—the Storyteller—and they waited many moons until the young hero arrived. They then used the hero as a tool to slay the great primordial beasts of Terraria, alloting the Ancients each enough combined power to return to their physical forms, and additionally erasing much of the forces they failed to apprehend—and plenty more to eradicate the hero and seal the dark fate of Terraria forever, leaving them as the unquestionable gods of not only Terraria, but the universe itself, for eons until the stars died out and the universe came to a peaceful halt.