Foundry InspectorHow it works & interactions with other cards

What It Does

Foundry Inspector provides a static ability that reduces the cost of artifact spells you cast by {1}. This applies to any spell with the Artifact type, including Artifact Creatures, Equipment, and Vehicles. This reduction only affects the generic mana portion of the cost; it cannot reduce colored mana requirements.

How It Resolves Step by Step

When you cast an artifact spell, you first announce the spell and make any choices, such as the value of X. Next, you determine the total cost by starting with the mana cost or alternative cost, adding any cost increases, and finally applying cost reductions like Foundry Inspector's. Once this total cost is locked in, you pay the mana. Note that once you start casting the spell, opponents cannot remove Foundry Inspector to stop the discount from applying to that specific spell.

Common Mistakes

A common error is thinking Foundry Inspector reduces the cost of activated abilities of artifacts; it only applies to casting the spells themselves. Additionally, if an artifact costs only {1}, Foundry Inspector makes it cost {0}, but it cannot make a spell cost 'negative' mana. If you control multiple Foundry Inspectors, their effects stack, reducing costs by {1} for each one on the battlefield.

When to Play It

You should prioritize playing Foundry Inspector early in the game to maximize the cumulative mana saved over several turns. It is particularly effective in 'Artifact Storm' or 'Big Mana' strategies where you intend to chain multiple spells together in a single turn, effectively multiplying the value of the {1} discount.

Interaction examples

Scaling Value with Solemn Simulacrum

Solemn Simulacrum

With Foundry Inspector on the battlefield, the total cost to cast Solemn Simulacrum is reduced from {4} to {3}. You pay the reduced cost, and when it enters the battlefield, you still get to search for your basic land as usual. This allows you to ramp your mana base even faster for a lower initial investment.

Protecting Your Discounted Golem

Roaming Throne

Roaming Throne normally costs {4} to cast. With Foundry Inspector in play, you only pay {3}. As Roaming Throne enters, you might choose 'Construct' as the creature type. Because Foundry Inspector is a Construct, any of its future triggered abilities (if granted by other cards) would trigger twice, all while you saved mana on the initial cast.