Excise the Imperfect [March of the Machine Commander]

Exile target nonland permanent. Its controller incubates X, where X is its mana value. (They create an Incubator token with X +1/+1 counter on it and “{2}: Transform this artifact.” It transforms into a 0/0 Phyrexian artifact creature.)

“Riddles are but petty diversions. Phyrexia is the only truth.”