Card Codex

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17 May 2024: Card library updated.

Cosmium Catalyst

· Artifact

{1}{R}, {T}: Choose an exiled card used to craft Cosmium Catalyst at random. You may cast that card without paying its mana cost.

Similar cards

Color identity:
NameManaTypeText
Hauken's Insight Legendary Enchantment At the beginning of your upkeep, exile the top card of your library face down. You may look at that card for as long as it remains exiled. Once during each of your turns, you may play a land or cast a spell from among the cards exiled with this permanent without paying its mana cost.
Soundwave, Sonic Spy 1WUBLegendary Artifact Creature — Robot More Than Meets the Eye {2}{W}{U}{B} (You may cast this card converted for {2}{W}{U}{B}.) Whenever one or more creature tokens you control deal combat damage to a player, exile target instant or sorcery card with mana value equal to the damage dealt from their graveyard. Copy it. You may cast the copy without paying its mana cost. If you do, convert Soundwave. 5/4
Gix, Yawgmoth Praetor 1BBLegendary Creature — Phyrexian Praetor Whenever a creature deals combat damage to one of your opponents, its controller may pay 1 life. If they do, they draw a card. {4}{B}{B}{B}, Discard X cards: Exile the top X cards of target opponent's library. You may play lands and cast spells from among cards exiled this way without paying their mana costs. 3/3
Guff Rewrites History 2RInstant For each player, choose target nonenchantment, nonland permanent that player controls. Those permanents' owners shuffle them into their libraries. Each player who controlled one of those permanents exiles cards from the top of their library until they exile a nonland card, then puts the rest on the bottom of their library in a random order. Each player may cast the nonland card they exiled without paying its mana cost.
Myra the Magnificent 2URLegendary Creature — Human Performer Whenever you cast an instant or sorcery spell from your hand, open an Attraction. {X}, {T}: Exile target instant or sorcery card with mana value X from your graveyard and choose an Attraction you control that doesn't have a midway counter on it. Put a midway counter on it. For as long as that Attraction is on the battlefield, whenever you visit it, copy the exiled card. You may cast the copy without paying its mana cost. 2/4
Founding the Third Path 1UEnchantment — Saga Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.) I — You may cast an instant or sorcery spell with mana value 1 or 2 from your hand without paying its mana cost. II — Target player mills four cards. III — Exile target instant or sorcery card from your graveyard. Copy it. You may cast the copy.
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Jegantha, the Wellspring 4R/GLegendary Creature — Elemental Elk Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) {T}: Add {W}{U}{B}{R}{G}. This mana can't be spent to pay generic mana costs. 5/5
Kentaro, the Smiling Cat 1WLegendary Creature — Human Samurai Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) You may pay {X} rather than pay the mana cost for Samurai spells you cast, where X is that spell's mana value. 2/1
Sram's Expertise 2WWSorcery Create three 1/1 colorless Servo artifact creature tokens. You may cast a spell with mana value 3 or less from your hand without paying its mana cost.
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