Card Codex

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17 May 2024: Card library updated.

Secrets of the Key

U · Instant

Investigate. If this spell was cast from a graveyard, investigate twice instead. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Flashback {3}{U}

Similar cards

Color identity:
NameManaTypeText
Decaying Soil 1BBEnchantment At the beginning of your upkeep, exile a card from your graveyard. Threshold — As long as seven or more cards are in your graveyard, Decaying Soil has "Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay {1}. If you do, return that card to your hand."
Vorinclex, Monstrous Raider 4GGLegendary Creature — Phyrexian Praetor Trample, haste If you would put one or more counters on a permanent or player, put twice that many of each of those kinds of counters on that permanent or player instead. If an opponent would put one or more counters on a permanent or player, they put half that many of each of those kinds of counters on that permanent or player instead, rounded down. 6/6
Keeper of Secrets 5RCreature — Demon First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4
Byode, Inverse Sun 2UBLegendary Universewalker — Byode +2: Mill three cards, then return any number of cards from different Universes milled this way from your graveyard to your hand. -X: Choose a Universe you haven't chosen this way this game. You may cast a spell from that Universe with mana value X or less from your hand without paying its mana cost. Byode, Inverse Sun can be your commander. Your deck can include Universes Beyond cards of any color identity.
The Legend of Arena 1URWLegendary Enchantment — Saga The Legend of Arena can be your commander. I, II — Create a 2/1 red Human Wizard creature token. Spells you cast this turn cost {1} less to cast for each Wizard you control. III — Search your library for a planeswalker card, put it onto the battlefield, then shuffle your library. It enters with an additional loyalty counter on it for each Wizard you control.
Selesnya Loft Gardens Plane — Ravnica If an effect would create one or more tokens, it creates twice that many of those tokens instead. If an effect would put one or more counters on a permanent, it puts twice that many of those counters on that permanent instead. Whenever chaos ensues, until end of turn, whenever you tap a land for mana, add one mana of any type that land produced.
Enroll in the Coalition 3WEnchantment You are a Flagbearer. While choosing targets as part of casting a spell or activating an ability, your opponents must choose at least one Flagbearer if able.
Wurmquake 4GGSorcery Corrupted — Create an X/X green Phyrexian Wurm creature token with trample and toxic 1, where X is the amount of mana spent to cast this spell. Then for each opponent with three or more poison counters, you create another one of those tokens. Flashback {8}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
March of Reckless Joy XRInstant As an additional cost to cast this spell, you may exile any number of red cards from your hand. This spell costs {2} less to cast for each card exiled this way. Exile the top X cards of your library. You may play up to two of those cards until the end of your next turn.
Malicious Eclipse 1BBSorcery All creatures get -2/-2 until end of turn. If a creature an opponent controls would die this turn, exile it instead.
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