Avatar of Mogdroden

To find the Celestial from the Base game, you must complete the Rhowari Legacy quest, in which you must find his body (runed stone) and his mind (one in the Blood Grove rift, one in the Plains of Strife rift), then restore the Mogdroden Shrine to Asterkarn Valley (east of the waypoint). You will also need to be level 81.

You can after a dialogue confront the boss, here is some important information:

• All his resistances are at 95+
• He has 35 million HP level 100 ultimate
• Mostly lightning damage
• Constantly summons creeps
• To kill him, target the creeps first, then the boss
• Watch out for his life regeneration, you will need high DPS and good resistance

Ravager of Flesh, Minds, Souls

This celestial can take three forms depending on your choice after completing the Cast Off the Flesh quest. This is to be done in Barrowholm once all the quests in the town have been completed (faction level at least honored). To start it, do The Feast quest where you have to search and kill three critters in Ugdenbog and Gloomwald to get their hearts back.

Then choose the human to sacrifice to make the celestial appear:

• Ravager of Flesh - Tyvald
• Ravager of Minds - Aurin
• Ravager of Souls - Jordyth

The differences are minimal, Flesh will tap in vitality, Souls in aether, Minds in elemental. Each Ravager has a unique Legendary Helmet Drop.

• All of his resistances are at 95+
• He has 35 million HP level 100 ultimate
• The boss is alone, but enraged (attack speed and movement increased) to 50% hp then 25% hp, so it will be very complicated to kite
• Watch out for his life regeneration, you will need high DPS and good resistance

Callagra, Scion of the Sands

Finding this third celestial will take the longest, you will need a Celestial Essence then go to the altar of the Korvan Sands map to use it to make the celestial appear. The problem will be to recover the gasoline. For this you will have to open secret Korvan chests and hope to get it. You also have a low chance at the ballot box. To find the chests, you have the map with the Korvan secrets chest here, those marked with a question mark

• All his resistances are at 95+
• He has 25 million HP level 100 ultimate
• Summon two tornadoes, avoid staying in them!
• Spike damage that can bone you