NODE.OVRD.AVALON

//NODE.OVRD.AVALON// is a secret Exotic Mission introduced in Season of Defiance and can be accessed in the European Dead Zone.

Overview/Entrance
In order to start the mission for the first time, you need to collect 6 Vex cubes in The Gulch (EDZ) to reveal the passcode and unlock the beginning of the mission. The mission can then be activated from inside a portal inside a cave on the top right of the area. After completing this mission for the first time, players will then be able to access this mission at any time from an icon on the EDZ map.

Once inside, jump off the cliff in front of you into a chute. You will land in a small room with two doors that constantly open and close. Go through one of them, and jump onto a small platform on your right. From there, jump straight up, aiming towards the small green light at the top of the room. Once you get up to the green light, you will be prompted to activate the node. Do this, then drop down to the bottom and head to the ledge at the other end of the room. Go in either direction, and you will encounter two Vex Harpies. Go past them, and there will be a small slit in the wall at the halfway point. Once you enter here, follow the path and drop down the elevator to the first encounter.

Data Nullifier
Once you enter the arena, clear the first few enemies to begin the encounter. Headless Vex Goblins will begin to transmat into the arena. These headless Vex will drop a purple mote of data on the ground upon being defeated. The objective of this encounter is to collect a specified amount of data from these headless Goblins, then deposit it into the spire in the middle of the arena. After depositing the requested amount of data, a pit in the middle of the arena will open in order to save you from being killed by the wipe mechanic. This wipe mechanic will erase all life within the arena after the given timer expires. While hiding in the pit, be aware that enemies can still attack you from outside of it, especially the Wyverns. Stay alive by hugging the walls of the pit as cover, and after the timer runs out, the middle of the arena will be sealed off, leading to you being teleported back to the arena.

You will need to deposit 8 data motes the first time, then 10 data motes. After the second set of data is deposited, a large Hydra boss will appear in addition to a wave of enemies. This boss has two phases, split into two halves of its health. After you erase half of its health, you will need to gather a further 10 data motes, then 12 data motes, in order to progress to the 2nd damage phase. Kill the headless goblins, collect the data, deposit it and then the second damage phase will begin. Nothing mechanical about the encounter changes between the first and second damage phases.

Brakion, Repurposed Mind
To begin the final fight against Brakion, proceed towards the portal in the back. Brakion will then transmat into the arena, armed with a Line Rifle and the ability to coat an area near its target with Void flames. Waves of regular Vex enemies will spawn to assist Brakion. Defeat these and continue to damage Brakion, as they teleport to each corner of the triangular arena periodically. Once enough damage is dealt, Brakion will leave, and the portal near the initial spawn location will become active. Use this to reach the next arena.

Brakion will now be held inside a shielded perimeter. In order to continue your fight against Brakion, you need to kill a "Daemon" (Vex Hydra) that will spawn along with further regular Vex forces. This will then spawn the same shapes encountered previously in the mission, in pits to the left and right of Brakion's raised platform. You will need to complete 3 of these combinations at the central spire in order to reach the next damage phase. Once the shield drops, damage Brakion enough to bring the shield back up, and then continue to eliminate the Daemon that spawns, read the symbols, complete the sequences and deplete Brakion's health enough to cause them to teleport away again. Another portal behind their previous position will activate for you to use to reach the final arena.

In this final arena, cover is scant in the triangular arena, and Brakion will begin to march you down while supported by more regular Vex forces. After suffering enough damage, Brakion will lose its head, causing them to enrage. This means Brakion will begin to sprint after a target until point blank, stomping them, all the while firing regular attacks. Using the small blocks of cover to delay Brakion's chase is key to surviving in this section, as there is very little breathing room given.

Once Brakion's health is fully depleted, the Vexcalibur will spawn in front of the highest of the Vex milk waterfalls. Interacting with this will finish the mission and provide you with your winnings.

Enemies

 * Vex - Sol Collective
 * Goblin
 * Dataholder (Corrupt)
 * Quantum Goblin
 * Fanatic
 * Finalizer
 * Harpy
 * Quantum Harpy
 * Hobgoblin
 * Quantum Hobgoblin
 * Minotaur
 * Quantum Minotaur
 * Hydra
 * Encryption Daemon
 * Wyvern
 * Quantum Wyvern
 * Cyclops
 * Quantum Cyclops

Bosses

 * Digital Variant Tracker
 * Digital Variant Neutralizer
 * Data Nullifier
 * Variant Stalker Brakion, Repurposed Mind

Trivia

 * Avalon is the name of a mythical island featured in the Arthurian legend. In some interpretations, it is where King Arthur's remains are located, possibly alluding to Asher Mir's presence within the Avalon Node.

List of appearances

 * Destiny 2
 * Lightfall
 * Season of Defiance