No. 890 · Generation 8
Eternatus
It's one of the guardians of Gloom Marsh: it waits on floor 100.
Where to find it
Guardians don't show up lost: you have to beat them on their floor.
How to get it
GuardianBeat it on its floor. It may stay at your haven; if it gets away, it's more likely to stay next time.
Evolution
It doesn't evolve. Instead it awakens when it reaches levels 20 and 40 of the expedition, and gets stronger.
Attacks
It has its type's basic attack, which fires on its own, and two specials you pick before leaving.
BasicPoison StingFires on its own at the nearest enemy, and the shot follows it. Leaves the enemy poisoned.
SpecialSludgeBursts at the spot you aim at. Leaves the enemy poisoned.
SpecialPoison GasA wave around you that reaches everyone near you. Leaves the enemy poisoned.
SpecialToxic SpikesPlaces a trap that goes off when an enemy steps on it. Leaves the enemy poisoned.
SpecialBaneful BunkerYou take a guard stance: the next hit does no damage and you answer with a blast around you. Leaves the enemy poisoned.
SpecialDragon PulseBursts at the spot you aim at.
SpecialTwisterA wave around you that reaches everyone near you.
SpecialDragon RushLaunches you towards where you aim and damages whatever you pass through.
SpecialDragon DanceCovers you with a shield for a few seconds: you take less damage and can't be stunned.UltimateToxic DelugeIt charges as you fight. It wipes out the enemies around you.