Enchant creature (Target a(n) creature as you cast this. This card enters the battlefield attached to that creature.)
Enchanted creature has infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.).
At the beginning of your upkeep, put a -1/-1 counter on enchanted creature.
When Glistening Oil is put into a graveyard from the battlefield, return Glistening Oil to its owner's hand.
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