Card Codex

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17 May 2024: Card library updated.

Tainted Observer

1GU · Creature — Phyrexian Bird

Flying Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Whenever another creature enters the battlefield under your control, you may pay {2}. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) 2/3

Similar cards

Color identity:
NameManaTypeText
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Sizzling Soloist 3RCreature — Human Citizen Alliance — Whenever another creature enters the battlefield under your control, target creature an opponent controls can't block this turn. If this is the second time this ability has resolved this turn, that creature attacks during its controller's next combat phase if able. 3/2
Amareth, the Lustrous 3GWULegendary Creature — Dragon Flying Whenever another permanent enters the battlefield under your control, look at the top card of your library. If it shares a card type with that permanent, you may reveal that card and put it into your hand. 6/6
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Marit Lage's Slumber 1ULegendary Snow Enchantment Whenever Marit Lage's Slumber or another snow permanent enters the battlefield under your control, scry 1. At the beginning of your upkeep, if you control ten or more snow permanents, sacrifice Marit Lage's Slumber. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.
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Kor Bladewhirl 1WCreature — Kor Soldier Ally Rally — Whenever Kor Bladewhirl or another Ally enters the battlefield under your control, creatures you control gain first strike until end of turn. 2/2
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