name: Myr Prototype
originalText: At the beginning of your upkeep, put a +1/+1 counter on Myr Prototype.\nMyr Prototype can't attack or block unless you pay {1} for each +1/+1 counter on it. (This cost is paid as attackers or blockers are declared.)
printings: MRD
text: At the beginning of your upkeep, put a +1/+1 counter on Myr Prototype.\nMyr Prototype can't attack or block unless you pay {1} for each +1/+1 counter on it.