Cloud's Limit Break
Instant
Oracle Text
Tiered (Choose one additional cost.) • Cross-Slash —
— Destroy target tapped creature.
• Blade Beam — 
— Destroy any number of target tapped creatures with different controllers.
• Omnislash — 
— Destroy all tapped creatures.
Rules for this card
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A keyword ability found on some modal spells that requires you to pay an additional cost for the mode you choose. See rule 702.183, “Tiered.”
Rulings (6)
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Wizards of the CoastYou must choose exactly one of the listed modes and pay its associated additional cost in order to cast a spell with tiered.
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Wizards of the CoastIf an effect allows you to cast a spell with tiered "without paying its mana cost," you must still choose exactly one mode and pay the associated additional cost.
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Wizards of the CoastThe mana value of a spell with tiered is determined only by its mana cost (in the upper right corner of the card). It doesn't matter which mode you choose or which additional costs you pay, including any additional costs imposed by other effects.
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Wizards of the CoastYou choose the mode as you cast the spell with tiered. Once the mode is chosen, it can't be changed.
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Wizards of the CoastIf a mode requires a target, you can select that mode only if there's a legal target available. Ignore the targeting requirements for modes you don't choose.
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Wizards of the CoastIf a spell with tiered is copied, the effect that creates the copy may allow you to choose new targets. You cannot choose a new mode.