Corruption of Towashi is a uncommon Enchantment card from March of the Machine (MOM), collector number 53. Current market price: $0.03 (foil $0.30), TCGplayer market prices via Scryfall.
When this enchantment enters, incubate 4. (Create an Incubator token with four +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.) Whenever a permanent you control transforms or a permanent you control enters transformed, you may draw a card. Do this only once each turn.