Level 100

This is the tenth boss of the Adventure Map. Duchess is featured as the boss with Electrex and Vixsun. Also, unlike previous bosses, the boss wave starts right away. It will be like this throughout the Adventure Map.

Strategy
The Duchess here has godly stats. She and her uncommon squires will be dealing raw damage only.

Strategy 1 (Stamina Stunlocking)
Monsters: Nidaria, Blob, Goldfield

Moves: Blob needs his 100% stamina drain move and Nidaria needs Stamina Trap and as many torture effects as possible

Runes: Blob needs 3 Speed, Nidaria and Goldfield need 3 Team Speed

What to do:

Drain all of Duchess' stamina. She should recharge the moment she gets a turn in. Once she does, let Nidaria use a torture effect move (doesn't matter which one). Blob should drain 50% of Duchess' stamina, forcing her to recharge again. Goldfield is there for him to continuously spam Life Channeling so that no one runs out of stamina. Once Nidaria applies all her torture effects, she can use Stamina Trap. Do this until Duchess is dead. The two uncommons should be easy as pie.

Strategy 2 (ft. Evaranae)
Monsters: Evaranae, a support and a monster with at least one way of controlling

Moves: Evaranae needs Mortal Bite

Runes: Evaranae needs 2 Life and 1 (Team) Speed

What to do:

Duchess should go first (unless your denier outspeeds her, then deny her). Once she gets her turn in, let Evaranae use Mortal Bite. Now shred the life of the two other uncommons. Once Duchess gets 3 turns in, she should die. Make sure your team doesn't die.