Corpse Cobble

one blue mana one black mana Instant

As an additional cost to cast this spell, sacrifice any number of creatures.

Create an X/X blue and black Zombie creature token with menace, where X is the total power of the sacrificed creatures.

Flashback three generic mana one blue mana one black mana (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)

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Showing Innistrad: Midnight Hunt#214

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0.28 $

Foil 0.30 $

12 printings · up to 0.30 $

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Corpse Cobble rulings

2025-06-06
You must still follow any timing restrictions and permissions, including those based on the card's type. For instance, you can cast a sorcery using flashback only when you could normally cast a sorcery.
2025-06-06
"Flashback [cost]" means "You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack."
2025-06-06
If a card with flashback is put into your graveyard during your turn, you can cast it if it's legal to do so before any other player can take any actions.
2025-06-06
You can cast a spell using flashback even if it was somehow put into your graveyard without having been cast.
2025-06-06
To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
2025-06-06
A spell cast using flashback will always be exiled afterward, whether it resolves, is countered, or leaves the stack in some other way.
2021-09-24
If you cast Corpse Cobble using flashback, you still pay its additional cost of sacrificing any number of creatures.
2021-09-24
You may choose to sacrifice no creatures to pay the additional cost. If you do, you'll create a 0/0 Zombie token. Unless something else is raising its toughness, the token will subsequently die, but any "enters the battlefield" or "dies" triggered abilities will still trigger.

Corpse Cobble keyword rules

Flashback Rule 702.34

Flashback appears on some instants and sorceries. It represents two static abilities: one that functions while the card is in a player’s graveyard and another that functions while the card is on the stack. “Flashback [cost]” means “You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost” and “If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack.” Casting a spell using its flashback ability follows the rules for paying alternative costs in rules and –h.