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Legality
Format | Legality |
1v1 Commander | Legal |
Archenemy | Legal |
Block Constructed | Legal |
Canadian Highlander | Legal |
Casual | Legal |
Commander / EDH | Legal |
Commander: Rule 0 | Legal |
Custom | Legal |
Duel Commander | Legal |
Highlander | Legal |
Legacy | Legal |
Leviathan | Legal |
Limited | Legal |
Modern | Legal |
Oathbreaker | Legal |
Planechase | Legal |
Quest Magic | Legal |
Vanguard | Legal |
Vintage | Legal |
Myr Prototype
Artifact Creature — Myr
At the beginning of your upkeep, put a +1/+1 counter on Myr Prototype.
Myr Prototype can't attack or block unless you pay (1) for each +1/+1 counter on it.