Convocation of the Damned

The Convocation of the Damned is a Blood Magic ritual that opens a portal to the Demonic Realm. The ritual requires 15M LP to activate, eight filled crystal belljars, the sacrifice of a lesser demon or elemental, and up to 500 blocks in each direction for the impending demon city to grow and expand. The ritual should be conducted on the Moon or some obscure planet because the Overworld has been blacklisted and the ritual does not always work in the Last Millenium, Personal Dimension, or Twilight Forest.

The demon city consists of randomly generated stone structures that cause demon grunts to spawn around them. Demon grunts are the only source of life and soul shards in GTNH, but they can be captured in a soul vial and farmed in an Extreme Entity Crusher. Life and soul shards are used to craft crystal cluster blocks for a T6 Blood Altar, blood-soaked ichorium blocks from just 2 ichorium ingots, and the Draconic Evolution Fusion Crafter.

Preparation

The Convocation of the Damned is a very costly and involved ritual to conduct. First, it needs at least 15M LP from your soul network to even activate. That alone requires an Archmage's Blood Orb (10M LP capacity), 13 rune of the orbs on your Blood Altar, and an awakened activation crystal. Each rune of the orb increases the capacity of a soul network by +4% of the original maximum which is an additional 400k LP per rune with the Archmage’s Blood Orb. Note this is (surprisingly) buffed from the default +2% per rune.

Second, the ritual needs 8 filled crystal belljars each containing a unique alchemic reagent: magicales, potentia, incendium, terrae, tenebrae, sanctus, aether, and aquasalus. Follow the steps listed below to fill a belljar using the alchemic calcinator, an alchemic router, and 16 of each reagent.

Filling belljars with the alchemic calcinator.	1. Place the calcinator and belljar within a few blocks of each other. Right-click the calcinator with any blood orb and some reagent to insert them.
	2. The calcinator slowly turns each reagent into 1,000 AR at the cost of 2,000 LP. The calcinator has an internal buffer of 2,000 AR and a main tank of 4,000 AR.
	3. Right-click the calcinator with the alchemic router to simultaneously tune the router to the reagent inside and set the calcinator as the source of the transfer.
	4. Right-click the belljar with the alchemic router to set it as the destination of the transfer. The liquid reagent (AR) should begin flowing into the belljar until it reaches its maximum capacity of 16,000 AR. If something goes wrong, use an alchemic cleanser to clear any established links.

Third, the ritual needs the sacrifice of a lesser demon or elemental. Summon one from an arcane plinth and trap the entity in a soul vial. Any lesser demon or elemental could work but it is recommended to use a fallen angel because it does not fly around. The fallen angel's summoning reagents are 3 sanctus, 1 aether, 1 terrae, and 1 tenebrae. Bring a dagger of sacrifice to the Convocation of the Damned to make the sacrifice when the time is right.

Lastly, the Convocation of the Damned needs 1 master ritual stone, 128 ritual stones, and a blood altar. Take everything as well as a ritual diviner that can place dusk runes to a dimension with enough space for a 1,000 x 1,000 block demon city. The Moon or some obscure planet is the best option because the Overworld has been blacklisted and the ritual does not always work in the Last Millenium, Personal Dimension, or Twilight Forest.

Execution

1. Right-click the master ritual stone with a ritual diviner set to Convocation of the Damned to quickly place all the ritual stones. The diviner must have the ability to place dusk runes.

2. Place the filled belljars atop the 8 pillars surrounding the center. The order of the belljars does not matter.

3. Link the crystal belljars to the master ritual stone with an alchemic router. First right-click a belljar to simultaneously tune the router to the reagent inside and set the belljar as the source of the transfer, then right-click the master ritual stone to set it as the destination of the transfer.

4. Place the blood altar above the master ritual stone. At this point the ritual should look like the following image when holding the alchemic router. The crystal belljars emit a colorful pulse towards the master ritual stone after successfully being linked and holding the alchemic router in hand.

5. Start the ritual by right-clicking the master ritual stone with an awakened activation crystal. This immediately drains 15M LP from your soul network. If the ritual is not starting, right-click the air first to make sure the awakened activation crystal is properly bound.

6. Lightning continuously strikes the area around the ritual until all the belljars are completely drained. If the lightning ever stops early and the belljars stop draining, try relinking the filled belljars to the master ritual stone.

7. Once all the belljars are drained, the lightning should stop and the ritual is ready for a sacrifice. Release the lesser demon or elemental on the blood altar above the master ritual stone and kill it using the dagger of sacrifice. It should die in one hit.

8. The blood altar immediately changes to a demon portal and a pyramid-like structure is generated around it. Most of the ritual stones and all the belljars are lost when this happens but some can be recovered, as seen in the following image.

Top-view of the ritual while holding the alchemic router in hand.

Aftermath of the ritual. The demon portal sits above a pyramid-like structure. Some ritual stones can be recovered.

Life and Soul Shards

Once the demon portal is opened, it starts to slowly build out a demon city around it. The demon city consists of randomly generated stone structures that cause demon grunts to spawn around them. Some of the structures even have chests with basic loot, although none of it is really worthwhile at this stage of the game. The demon grunts have 200 HP and drop both life and soul shards at a 30% chance each.

Demon grunts are the only source of life and soul shards in GTNH, but they can be captured in a soul vial and farmed in an Extreme Entity Crusher (EEC). The "void all damaged and enchanted items" setting in the EEC needs to be disabled. The weapon/sword does not need to be a dagger of sacrifice for the shards to drop.

The beginnings of a demon city. The demon portal randomly generates stone structures around it that spawn demon grunts. The maximum size is approximately 1000x1000 blocks with the demon portal at the very center.