![Mercurial Geists [Mystery Booster]](http://fabledgames.store/cdn/shop/files/75b3b292-026b-575f-a678-18e37e63f3c7_d5a29448-3c79-4cbc-b033-446ab8e584b1.jpg?v=1724271440&width=672)
![Mercurial Geists [Mystery Booster]](http://fabledgames.store/cdn/shop/files/75b3b292-026b-575f-a678-18e37e63f3c7.jpg?v=1727378750&width=672)
![Mercurial Geists [Mystery Booster]](http://fabledgames.store/cdn/shop/files/75b3b292-026b-575f-a678-18e37e63f3c7_d5a29448-3c79-4cbc-b033-446ab8e584b1_1024x.jpg?v=1724271440)
![Mercurial Geists [Mystery Booster]](http://fabledgames.store/cdn/shop/files/75b3b292-026b-575f-a678-18e37e63f3c7_1024x.jpg?v=1727378750)
Description
| 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.
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
