railtools.
Monster Train 2/Relics & artifacts
Sigiled Seaweed icon in Monster Train 2

Sigiled Seaweed

common

Sigiled Seaweed is a common artifact in Monster Train 2. Its game-data effect is:

Apply Mute 1 when an enemy unit enters your train.

Mute
“The seaweed of the Sea is known to be very resistant to breaking. The addition of Stygian sigils make breaking it impossible, despite all my efforts.”

Game data · patch 2.2.1 · Artifact tier list and selection advice · All artifacts

Is Sigiled Seaweed good?

Artifact tier list · Updated July 2026

A

Excellent support. Automatic Mute can blank dangerous triggers before combat starts, giving control decks an answer that costs neither a draw nor Ember.

Best with: Stygian control and trigger-heavy enemy waves.

See the full Monster Train 2 artifact tier list →

Cards with the same named mechanics

Compare the exact effects before combining them: these cards share a keyword with Sigiled Seaweed, which can refer to gaining, removing or reacting to that effect.

0 Unnamed Tome
Stygian Guard Spell uncommon

Consume. Apply Mute 3 to enemy units.

ConsumeMute

Compare more artifacts

Chicot Bosses start with Mute 3.Silent Sigil When it becomes new, apply Armor 10 to friendly Silent units.Silver Capacity +2 Capacity.Silver Draw Draw +1 each turn.Silver Ember +1 Ember and +1 Deployment Ember.Sizzling Firecracker Spells gain +3 damage for each upgrade on their card.Skysong Trumpet Summoning a Hymnist applies Valor 5 to friendly units.Sparkflint Catalyst When a unit without Pyregel gains Pyregel, it gains +6 stacks.