Cogworker's PuzzleknotHow it works & interactions with other cards

Double the Servos

This artifact functions in two distinct parts. First, it has a triggered ability that triggers when it enters the battlefield, placing a 1/1 Servo token onto the field. Second, it features an activated ability that allows you to pay one white mana and one generic mana, then sacrifice the Puzzleknot to create another 1/1 Servo token. This means a single card can provide two separate bodies for your strategies.

Resolution Step-by-Step

When you cast Cogworker's Puzzleknot, it moves to the stack and then the battlefield. Once it enters, its triggered ability goes on the stack; when that resolves, you create a Servo. Later, as long as the artifact is on the battlefield and you have priority, you can pay the activation cost. The sacrifice is part of the cost, so the Puzzleknot moves to the graveyard immediately, and the second Servo token is created once the activated ability resolves.

Common Mistakes

A common error is forgetting that the sacrifice is a cost, not an effect. If an opponent tries to destroy Cogworker's Puzzleknot with a spell, you can respond by activating its ability. Because the sacrifice happens immediately as part of the cost, their destruction spell will lose its target. However, you cannot activate the ability if the artifact has already been destroyed or exiled by another effect.

When to Play It

This card is best played early to establish blockers or to enable 'Artifacts Matter' synergies. Because it creates two separate tokens, it is excellent in go-wide strategies. The activated ability can be held up during an opponent's turn, allowing you to create a surprise blocker or utilize leftover mana before your own turn begins.

Interaction examples

Mana Acceleration for Servos

Sol Ring

You can use the two colorless mana produced by Sol Ring to cast Cogworker's Puzzleknot on turn one. This immediately puts a 1/1 Servo token into play. You still have the Puzzleknot available on the board to sacrifice later once you have access to white mana.

Fixing Your Colors

Arcane Signet

If you are playing a multi-color deck, Arcane Signet can provide the specific white mana required for the Puzzleknot's activated ability. After Cogworker's Puzzleknot enters and creates the first Servo, you can tap the Signet for {W} and use one other mana to sacrifice the artifact and create the second Servo token.

Token Synergy

Servo

When Cogworker's Puzzleknot enters, it creates a Servo token. This token is an artifact creature. If you later pay {1}{W} and sacrifice the Puzzleknot, you place a second Servo token onto the battlefield. Both tokens are 1/1 colorless artifact creatures that can attack or block independently.