Schmeißfliegenbefall

Verzauberung, 2B (3)
Immer wenn eine Kreatur aus dem Spiel auf einen Friedhof gelegt wird und falls mindestens eine -1/-1-Marke auf ihr lag, lege eine -1/-1-Marke auf eine Kreatur deiner Wahl.
Als der Riese Tollek Weltenschlächter fiel, entstand eine Fäulnis in seinem Körper, die seinem Namen alle Ehre machte.
Illus. Drew Tucker

Enchantment
Whenever a creature is put into a graveyard from the battlefield, if it had a -1/-1 counter on it, put a -1/-1 counter on target creature.¹

Gatherer Card Rulings [Nov 2009]

• 5/1/2008: When Blowfly Infestation's ability resolves, it will put a single -1/-1 counter on the targeted creature. It doesn't matter how many -1/-1 counters were on the creature that went to a graveyard as long as it had at least one on it.
• 5/1/2008: This ability is mandatory. If you're the only player who controls any creatures when this ability triggers, you must target one of them.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/10)	Schattenmoor (Uncommon)