Card Codex

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17 May 2024: Card library updated.

Dire Undercurrents

3U/BU/B · Enchantment

Whenever a blue creature enters the battlefield under your control, you may have target player draw a card. Whenever a black creature enters the battlefield under your control, you may have target player discard a card.

Similar cards

Color identity:
NameManaTypeText
Octo Opus 3UUEnchantment When Octo Opus enters the battlefield, create a 4/4 blue Octopus Performer creature token named Contortionist with "At the beginning of your upkeep, you may fold this token in half." (It becomes 2/2, then 1/1, ½/½, and so on.) Sacrifice Octo Opus: Draw a card and an additional card for each of Contortionist's folds.
Bat Whisperer 3BCreature — Vampire When Bat Whisperer enters the battlefield, if an opponent lost life this turn, create a 1/1 black Bat creature token with flying. 4/2
Heronblade Elite 2GCreature — Human Warrior Vigilance Whenever another Human enters the battlefield under your control, put a +1/+1 counter on Heronblade Elite. {T}: Add X mana of any one color, where X is Heronblade Elite's power. 1/1
Tarrian's Journal 1BLegendary Artifact {T}, Sacrifice another artifact or creature: Draw a card. Activate only as a sorcery. {2}, {T}, Discard your hand: Transform Tarrian's Journal.
Carnage Altar 2Artifact {3}, Sacrifice a creature: Draw a card.
Phyrexian Vault 3Artifact {2}, {T}, Sacrifice a creature: Draw a card.
Indulgent Tormentor 3BBCreature — Demon Flying At the beginning of your upkeep, draw a card unless target opponent sacrifices a creature or pays 3 life. 5/3
Grenzo, Crooked Jailer 4BRLegendary Creature — Goblin Rogue When Grenzo enters the battlefield and at the beginning of your upkeep, heist target opponent's library. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast that you don't own. 6/4
Castigate WBSorcery Target opponent reveals their hand. You choose a nonland card from it and exile that card.
Night Terrors 2BSorcery Target player reveals their hand. You choose a nonland card from it. Exile that card.
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