The Euphotic Gatekeeper is the first main (not optional) boss in Graven Deep. The boss is not too tough, but it moves around a lot which can be annoying and there is one important mechanic to be aware of.
How to Defeat The Euphotic Gatekeeper Boss in ESO Graven Deep
Below are the most important mechanics that you will need to watch out for when taking on The Euphotic Gatekeeper:
Pangrits
To summon the boss you will first need to defeat some Pangrits. They will keep spawning though. They jump out of three holes in the ground. To start the boss fight, you need to close these holes by dropping the poison synergy on them.
Charge
This boss charges around the room a lot, and will send out AOEs in multiple directions when he does this. Try to avoid these. Getting hit by the boss when he is charging will knock you back.
Teleport
The boss teleports to other locations too. When he does this there will be an expanding AOE around him, which explodes at the same time as he teleports, so you will want to back away from this.
More Pangrits, and Poison
More pangrits will spawn throughout the fight, and players will get the poison on them again. Make sure to close off the Pangrit spawns by dropping the synergy on them.
The Euphotic Gatekeeper Hardmode Mechanics
On hardmode, the boss will have a bit more HP, at around 6.6 million, and his attacks will deal more damage. There are no additional mechanics.