Scars of Mirrodin (som) | ||
| #145 ⸱ Rare ⸱ English | ||
 Variations— Parts— | Contagion Engine
When this artifact enters, put a -1/-1 counter on each creature target player controls.  ,  : Proliferate twice. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)
LegalitiesLegal Duel Brawl Penny Predh Legacy Modern Vintage Historic Timeless Commander Gladiator Oathbreaker Not Legal Future Pauper Alchemy Pioneer Explorer Standard Oldschool Premodern Standardbrawl Paupercommander RulingsIf a permanent ever has both +1/+1 counters and -1/-1 counters on it at the same time, they're removed in pairs as a state-based action so that the permanent has only one of those kinds of counters on it.
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