Release counter

Release counters are a type of counter introduced on a Test card in Mystery Booster 2.
==Description==
Release counters first appeared on <c>The Heron Moon</c> test card where they represented Emrakul's presence in the Moon of Innistrad and the process of releasing her. Due to Innistrad's strong association with the number thirteen, 13 release counters are needed for Emrakul to be freed.
Category:Test cards