Incantation of Mycor

Put a spore counter on each nontoken Fungus you control. (As long as a creature has a spore counter on it, it has "When this creature dies, create X 1/1 black and green fungus creature tokens. Where X is the number of spore counters on this creature.)
Sacrifice any number of Fungi you control. Put the top card of your library into your graveyard for each Fungus sacrificed this way. Return up to one creature from your graveyard to your hand.