Card Codex

M:tG card similarity search

17 May 2024: Card library updated.

Giant Oyster

2UU · Creature — Oyster

You may choose not to untap Giant Oyster during your untap step. {T}: For as long as Giant Oyster remains tapped, target tapped creature doesn't untap during its controller's untap step, and at the beginning of each of your draw steps, put a -1/-1 counter on that creature. When Giant Oyster leaves the battlefield or becomes untapped, remove all -1/-1 counters from the creature. 0/3

Similar cards

Color identity:
NameManaTypeText
Invocation of the Founders Enchantment Whenever you cast an instant or sorcery spell from your hand, you may copy that spell. You may choose new targets for the copy.
Bred for the Hunt 1GUEnchantment Whenever a creature you control with a +1/+1 counter on it deals combat damage to a player, you may draw a card.
Goblin Bomb 1REnchantment At the beginning of your upkeep, you may flip a coin. If you win the flip, put a fuse counter on Goblin Bomb. If you lose the flip, remove a fuse counter from Goblin Bomb. Remove five fuse counters from Goblin Bomb and sacrifice it: It deals 20 damage to target player or planeswalker.
Necrologia 3BBInstant Cast this spell only during your end step. As an additional cost to cast this spell, pay X life. Draw X cards.
Extraordinary Journey XXUUEnchantment When Extraordinary Journey enters the battlefield, exile up to X target creatures. For each of those cards, its owner may play it for as long as it remains exiled. Whenever one or more nontoken creatures enter the battlefield, if one or more of them entered from exile or was cast from exile, you draw a card. This ability triggers only once each turn.
Spawn of Mayhem 2BBCreature — Demon Spectacle {1}{B}{B} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) Flying, trample At the beginning of your upkeep, Spawn of Mayhem deals 1 damage to each player. Then if you have 10 or less life, put a +1/+1 counter on Spawn of Mayhem. 4/4
Winged Portent 1UUInstant Cleave {4}{G}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.) Draw a card for each creature [with flying] you control.
Galvanic Iteration URInstant When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. Flashback {1}{U}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Rassilon, the War President 3UBLegendary Creature — Time Lord Noble At the beginning of your upkeep, you lose 2 life and exile the top card of your library. You may play that card for as long as it remains exiled. Each noncreature spell you cast from exile has conspire. (As you cast that spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose new targets for the copy.) 3/4
Lightning Reflexes 1REnchantment — Aura You may cast Lightning Reflexes as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step. Enchant creature Enchanted creature gets +1/+0 and has first strike.
Page 515