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Mercurial Geists [Eldritch Moon]
| Set: | Eldritch Moon |
| Type: | Creature — Spirit |
| 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
