Monster Legends Competitive Wiki
Monster Legends Competitive Wiki

Thalassa ruled the Water Realms until she had to go with the other Warmasters. She left the realms in the hands of her daughter Thetys and her lieutenant Hydratila, but the war between the two of them divided the population. Now Thalassa has returned and she must reunify the Water Realms.

Role: Denier


Warmaster Thalassa is a broken Water Denier who boasts a broken moveset. It consists of a massive amount of Freezing skills which include AoE Freeze or a spammable Freeze skill, and a whopping four Mega Freeze moves, two of which are AoE. In case she faces a DA + Taunt Team, Mega Taunt, or Freeze/Control Immunity it doesn’t matter as she has three Extra Turn skills, two of which come with either PER or TD, which also counters Anticipation, and the other gives an ally Freeze Hater and cleanses negative effects, having perfect synergy with her wonderful skillset. As for her stats, she boasts very nice Life and outstanding speed being the eight fastest legendary. That’s not all because she has a wonderful Trait that fits her perfectly. Team Freeze Immunity blocks a large portion of Deniers, Tough provides a solid umbrella Trait, and SC: Team Double Stamina Pool mingles with any stamina issues her or allies could have. Her only problems are her high cooldowns and embarrassing Relics being Amulet and Armour when compared to other Deniers. Despite this she is a wonderful monster and fits the meta almost perfectly even if she may not be the best Legendary.


  • Amazing stats and trait
  • Broken movepool
  • Abyss Bottom is ridiculous (and also bypasses Dodge Area)
  • Access to PER and NER
  • Four Mega Freeze skills in total
  • Anticipation isn't much of a problem with Trait Disable + Self Extra Turn
  • Decent relic slots


  • Moderate to high cooldowns
  • High stamina costs

Recommended Moveset

The Mean Queen (Ranked)

  • High Pressure Fluid (PER + Self Extra Turn, 23s, 2 CD)
  • Thalassa's Chosen (Ally NER + Freeze Hater + Self Extra Turn, 30s, 2 CD)
  • Abyss Bottom (PER + Trait Disabled + AoE Mega Freeze, 49s, 4 CD)
  • Plankton Eater (Trait Disabled + Self Extra Turn, 36s, 4 CD)

She is a maximum denier + support. If she goes first, you can start to do the freeze hater, then continue with Extra Turn until all the allies have freeze hater or start with the PER and PER all the enemies.

Frozen Antarctic Wasteland (Unranked)

  • High Pressure Fluid
  • Thalassa's Chosen
  • Arctic Waves (AoE 30 Water dmg + Freeze + Drowned, 33s, 2 CD)
  • Abyssal Pressure (30 Water dmg + Mega Freeze + AoE residual damage, 32s, 3 CD)

Recommended Runes: 3 Speed

Recommended Relics: Nebotus' Armor; Supercharged Amulet, Tayni's Amulet, Sherezar's Amulet


  • Crabbydroid is Thalassa's worst enemy. Having Freeze Immunity, Trait Protection, and higher speed, there's almost nothing she can do to him. Crabbydroid's Status Caster also applies Shock to all enemies at the start of the battle, rendering extra turns useless. He can also deny and use Sea Hater, Thunder Weakness, and Thunder moves to completely destroy her.
  • Anticipation monsters, when paired with a Mega Taunt tank, can interrupt and cause problems for her denial setup. Watch out for Abyss Bottom. While it doesn't give an extra turn, it is the only move in her disposal able to bypass Anticipation behind Mega Taunt.
    • However, if she's also paired with a Mega Taunt monster, you'll be forced to use an Anticipator with PER. Lamia is excellent as she can clear away the Mega Taunt effect on the tank, then hit Thalassa with CDA. Nisael is also a great choice since he can clear negative effects (which nulls her setup), can also PER the MT and give her death countdown, seeing as she loves to utilize many extra turns.