Card Codex

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17 May 2024: Card library updated.

Trinisphere

3 · Artifact

As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)

Similar cards

Color identity:
NameManaTypeText
Demon of Fate's Design 4BBEnchantment Creature — Demon Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost. {2}{B}, Sacrifice another enchantment: Demon of Fate's Design gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value. 6/6
Cheering Fanatic 1RCreature — Goblin Whenever Cheering Fanatic attacks, choose a card name. Spells with the chosen name cost {1} less to cast this turn. 2/2
Verdant Eidolon 3GCreature — Spirit {G}, Sacrifice Verdant Eidolon: Add three mana of any one color. Whenever you cast a multicolored spell, you may return Verdant Eidolon from your graveyard to your hand. 2/2
Mavinda, Students' Advocate 2WLegendary Creature — Bird Advisor Flying {0}: You may cast target instant or sorcery card from your graveyard this turn. If that spell doesn't target a creature you control, it costs {8} more to cast this way. If that spell would be put into your graveyard, exile it instead. Activate only once each turn. (You still pay the spell's costs. Timing rules for the spell still apply.) 2/3
Cephalid Coliseum Land {T}: Add {U}. Cephalid Coliseum deals 1 damage to you. Threshold — {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.
River Song's Diary 3Artifact Imprint — Whenever a player casts an instant or sorcery spell from their hand, exile it instead of putting it into a graveyard as it resolves. At the beginning of your upkeep, if there are four or more cards exiled with River Song's Diary, choose one of them at random. You may cast it without paying its mana cost.
Tidal Bore 1UInstant You may return an Island you control to its owner's hand rather than pay this spell's mana cost. You may tap or untap target creature.
Rowan, Scholar of Sparks 2RLegendary Planeswalker — Rowan Instant and sorcery spells you cast cost {1} less to cast. [+1]: Rowan, Scholar of Sparks deals 1 damage to each opponent. If you've drawn three or more cards this turn, she deals 3 damage to each opponent instead. [−4]: You get an emblem with "Whenever you cast an instant or sorcery spell, you may pay {2}. If you do, copy that spell. You may choose new targets for the copy." Loyalty 2
Vedalken Engineer 1UCreature — Vedalken Artificer {T}: Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts. 1/1
Mana Maze 1UEnchantment Players can't cast spells that share a color with the spell most recently cast this turn.
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