Bastion Inventor

Format legality

Where you can play Bastion Inventor in sanctioned and popular formats.

All printings (2)

Prices range from $0.03 to $0.23 across finishes. Cheapest printing: Aether Revolt at $0.03.

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Rulings

Official rulings from Wizards of the Coast (8).

• 2017-02-09Improvise doesn’t change a spell’s mana cost or mana value.
• 2017-02-09When calculating a spell’s total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Improvise applies after the total cost is calculated.
• 2017-02-09Because improvise isn’t an alternative cost, it can be used in conjunction with alternative costs.
• 2017-02-09Improvise can’t pay for {W}, {U}, {B}, {R}, {G}, or {C} mana symbols in a spell’s total cost.
• 2017-02-09Improvise can’t be used to pay for anything other than the cost of casting the spell. For example, it can’t be used during the resolution of an ability that says “Counter target spell unless its controller pays {3}.”
• 2017-02-09If an artifact you control has a mana ability with {T} in the cost, activating that ability while casting a spell with improvise will result in the artifact being tapped when you pay the spell’s costs. You won’t be able to tap it again for improvise. Similarly, if you sacrifice an artifact to activate a mana ability while casting a spell with improvise, that artifact won’t be on the battlefield when you pay the spell’s costs, so you won’t be able to tap it for improvise.
• 2017-02-09Tapping an artifact won’t cause its abilities to stop applying unless those abilities say so.
• 2017-02-09Equipment attached to a creature doesn’t become tapped when that creature becomes tapped, and tapping that Equipment doesn’t cause the creature to become tapped.

Frequently asked questions