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Herald of Anguish (64)

AER · Aether Revolt · mythic

Mana cost
Mana value	7.0
Type	Creature — Demon
Rarity	mythic
Colors	B
Power / Toughness	5 / 5
EDHREC rank	11374

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Flying At the beginning of your end step, each opponent discards a card. {1}{B}, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

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Printings

Aether Revolt $0.70 Aether Revolt Promos — Kaladesh Remastered — The Brothers' War Commander $0.37

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Legality

Rulings

• 2017-02-09: Equipment 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.
• 2017-02-09: Tapping an artifact won't cause its abilities to stop applying unless those abilities say so.
• 2017-02-09: If 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.
• 2017-02-09: When 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.
• 2017-02-09: Improvise can't pay for {W}, {U}, {B}, {R}, {G}, or {C} mana symbols in a spell's total cost.
• 2017-02-09: Improvise 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}.”
• 2017-02-09: Improvise doesn't change a spell's mana cost or mana value.
• 2017-02-09: Because improvise isn't an alternative cost, it can be used in conjunction with alternative costs.

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