Arch Aethereater
Arch Aethereater is a Rank S Elite Mark found in Dawntrail. Arch Aethereater is one of what the player base calls SS Ranks
Killing the Elite Mark will reward the player up to 
400 Sacks of Nuts, 
200 Allagan Tomestones of Poetics, 
100 Allagan Tomestones of Aesthetics, 
50 Allagan Tomestones of Heliometry, 1 
Cracked Novacluster and 1 
Cracked Prismaticluster.
Coordinates
| Zone | Coordinates | Level range |
|---|
Spawn Conditions
Trigger
Each time a Rank S dies in Dawntrail areas, it has a chance to spawn four Crystal Incarnation throughout the zone. Once four of them are killed, Arch Aethereater will spawn.
If they spawn, the game will announce: "The minions of an extraordinarily powerful mark are on the hunt for prey."
They will withdraw exactly 5 minutes after this message if not engaged, or if disengaged by dying.
When all of them are killed, Arch Aethereater will spawn.
Time
Arch Aethereater has no respawn timer. It is randomly decided by the server upon each Dawntrail Rank S death whether it will spawn minions or not. Because of this, if the spawning fails because a minion withdraws it has no effect on any timers. It could theoretically spawn minions after every single Rank S death in Dawntrail in a row if the game decided to randomly do that.
Tips and Tricks
When it spawns, the game will announce "You sense the presence of a powerful mark..."
- Fire IV is a circle AoE applying a
Vulnerability Up. - Blizzard IV is a donut AoE applying a Vulnerability Up.
- Aethermodynamics precedes Soulless Stream.
- Soulless Stream is a half-circle cleave of the area telegraphed by a hand being held in the direction collecting power.
- Followed up with Fire IV if it collected fire power.
- Followed up with Blizzard IV if it collected ice power.
- Obliterate is a telegraphed stack marker on a random target.
- Meltdown is a long column AoE at a random target. Move away from where it's facing. Repeats this a lot.