Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Whenever a source deals damage to Reaper of Sheoldred, that source's controller gets a poison counter.
Official Rulings for Reaper of Sheoldred
6/1/2011 : The source's controller will get one poison counter for each time that source deals damage to Reaper of Sheoldred, not one poison counter for each 1 damage dealt.
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