
Flying
Whenever you cast an instant or sorcery spell, this creature 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
Illustrated by Lake Hurwitz · Eldritch Moon · #186
There are no rulings for Mercurial Geists.