MTG Single

Mercurial Geists [Mystery Booster]

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Set: Mystery Booster
Type: Creature — Spirit
Rarity: Uncommon
Cost: {2}{U}{R}
Flying
Whenever you cast an instant or sorcery spell, Mercurial Geists gets +3/+0 until end of turn.
"Procedural misstep: provocation of geists for the purpose of yielding more energy can compromise containment units. Next action: clean up mess." —Laboratory notes