Soldevi MachinistHow it works & interactions with other cards

What It Does

Soldevi Machinist is a 1/3 creature that functions as a specialized mana generator. By tapping it, you add two colorless mana to your mana pool. However, this mana comes with a specific limitation: it can only be used to pay for the activation costs of artifact abilities. This includes any ability on an artifact card that is formatted as 'Cost: Effect'.

How It Resolves Step by Step

First, ensure Soldevi Machinist does not have summoning sickness. Second, activate the ability by tapping the creature; this is a mana ability, so it doesn't use the stack and resolves immediately. Third, the two colorless mana enters your mana pool with a 'tag' that limits its use. Finally, you may spend this mana to pay for any part of an activation cost of an artifact you control, such as a mana ability or a functional utility ability.

Common Mistakes

The most frequent error is attempting to use this mana to cast artifact spells. Even if the spell is an artifact, Soldevi Machinist mana cannot pay for it. Additionally, this mana cannot be used for triggered abilities (abilities that start with 'When', 'Whenever', or 'At') that require a mana payment, nor can it be used for static costs like Ward. It is strictly for activated abilities.

When to Play It

This card shines in decks that feature artifacts with repeatable mana sinks or expensive activation costs. It is particularly effective for powering out mana-intensive artifact abilities early in the game, allowing you to bypass typical mana constraints as long as you have the right targets on the battlefield.

Interaction examples

Filtering for Color

Ornithopter of Paradise

You can tap Soldevi Machinist to add two colorless mana. Since Ornithopter of Paradise is an artifact with an activated mana ability ({T}: Add one mana of any color), you can use one of those colorless mana to pay for a cost if one were required. However, because Ornithopter of Paradise only requires tapping as a cost, you would use the Machinist's mana for other artifacts, such as using the two colorless mana to activate a different artifact's ability that costs {2}.

Casting Restrictions

Foundry Inspector

If you have Foundry Inspector on the battlefield, your artifact spells cost {1} less. Even with this discount, you cannot use the mana generated by Soldevi Machinist to pay for the remaining cost of an artifact spell you are casting. The Machinist's mana is restricted to activated abilities of artifacts already on the battlefield, not for casting artifact cards from your hand.