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Powerbalance
Enchantment
rare
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, you may cast that card without paying its mana cost if the two spells have the same mana value.
Card Kingdom
CardmarketSemantic Tags
A keyword ability that reduces how much mana you need to spend to cast a spell. See rule 702.41, “Affinity.”
A keyword ability that may let a player cast a random extra spell for no cost. See rule 702.85, “Cascade.”
A permanent or effect that makes spells or abilities cheaper to cast or activate.
A keyword ability that lets you exile cards from your graveyard rather than pay generic mana to cast a spell. See rule 702.66, “Delve.”
A keyword ability that lets a player cast a spell for less by sacrificing a creature. See rule 702.119, “Emerge.”
A keyword ability that lets a player play a card any time they could cast an instant. See rule 702.8, “Flash.”
A card or token on the battlefield. See rule 110, “Permanents.”
Cares about or manipulates the top card(s) of your library. Includes scry, surveil, and top-deck payoffs.
Cares about or manipulates the top of library — Sensei's Top, miracles, Future Sight.
A triggered ability that can counter spells or abilities that target the permanent with ward. See rule 702.21, “Ward.”
Format Legality
Price history
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Printings (4)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| Modern Horizons 3#131 | rare | · | · | · |
| Modern Horizons 3#495 | rare | · | · | · |
| Modern Horizons 3#335 | rare | · | · | · |
| Modern Horizons 3 Promos#131s | rare | · | · | · |
Related Rules
If an ability would produce one or more mana of an undefined type, it produces no mana instead.
Some abilities produce mana based on the type of mana another permanent or permanents “could produce.” The type of mana a permanent could produce at any time includes any type of mana that an ability of that permanent would produce if the ability were to resolve at that time, taking into account any applicable replacement effects in any possible order. Ignore whether any costs of the ability could or could not be paid. If that permanent wouldn’t produce any mana under these conditions, or no type of mana can be defined this way, there’s no type of mana it could produce.
To “tap [a permanent] for mana” is to activate a mana ability of that permanent that includes the {T} symbol in its activation cost. See rule 605, “Mana Abilities.”
An ability that triggers whenever a permanent “is tapped for mana” or is tapped for mana of a specified type triggers whenever such a mana ability resolves and produces mana or the specified type of mana.
A replacement effect that applies if a permanent “is tapped for mana” or tapped for mana of a specific type and/or amount modifies the mana production event while such an ability is resolving and producing mana or the specified type and/or amount of mana.
If an object’s enters-the-battlefield triggered ability or replacement effect refers to X, and the spell that became that object as it resolved had a value of X chosen for any of its costs, the value of X for that ability is the same as the value of X for that spell, although the value of X for that permanent is 0. This is an exception to rule 107.3i.
The tap symbol is {T}. The tap symbol in an activation cost means “Tap this permanent.” A permanent that’s already tapped can’t be tapped again to pay the cost. A creature’s activated ability with the tap symbol in its activation cost can’t be activated unless the creature has been under its controller’s control continuously since their most recent turn began. See rule 302.6.
The untap symbol is {Q}. The untap symbol in an activation cost means “Untap this permanent.” A permanent that’s already untapped can’t be untapped again to pay the cost. A creature’s activated ability with the untap symbol in its activation cost can’t be activated unless the creature has been under its controller’s control continuously since their most recent turn began. See rule 302.6.
Rulings
If the revealed card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
If an opponent casts a spell with {X} in its mana cost, use the value of X that was chosen when it was cast to determine its mana value.
In some unusual cases, the card you reveal from the top of your library may not have the same mana value as the spell your opponent cast, but you can still cast that card because the resulting spell does have the same mana value. For example, if an opponent casts a spell with mana value 4 and you reveal Frogmyr Enforcer (a prototype card with mana cost {7} and prototype cost {3}{R}), you can cast Frogmyr Enforcer as a prototyped spell, as that spell will have a mana value of 4.
The mana value of a split card not on the stack or a fused split spell on the stack is determined by the combined mana cost of its two halves. Otherwise, while a split card is on the stack, its mana value is determined by the mana cost of the half that was chosen to be cast.
If you cast a spell "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs, such as kicker costs. If the spell has any mandatory additional costs, those must be paid to cast it.
A spell's mana value is determined only by its mana cost. Ignore any alternative costs, additional costs, cost increases, or cost reductions.
You choose whether or not to cast the exiled card as Powerbalance's triggered ability resolves. If you do, you do so as part of the resolution of that ability. You can't wait to cast it later in the turn. Timing restrictions based on the card's type are ignored.