Is Progenitor Exarch legal in Standard, Modern, and Commander?

Progenitor Exarch is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

Progenitor Exarch

Q: What type of card is Progenitor Exarch?

Progenitor Exarch is a Creature — Phyrexian Cat Cleric. Its oracle text reads: "When this creature enters, incubate 3 X times. (To incubate 3, create an Incubator token with three +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.) {T}: Transform target Incubator token you control. Power/Toughness: 1/2"

Creature — Phyrexian Cat Cleric

When this creature enters, incubate 3 X times. (To incubate 3, create an Incubator token with three +1/+1 counters on it and ": Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)