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Flying Whenever you cast a noncreature spell, put an oil counter on this creature. {U}, Remove an oil counter from this creature: Draw a card, then scry 2.
Abilities, attacks, weakness & resistance
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Serum Sovereign (ONE-405) is a rare blue Creature — Phyrexian Sphinx from Phyrexia: All Will Be One. It gains oil counters whenever you cast noncreature spells and can spend them with {U} and removing a counter to draw a card and then scry 2. With flying and a 4/4 body for five mana, it provides card advantage and a flying threat for control or blue-based spellslinger decks.
Catalog pricing data as of 21 Apr 2026, 11:36