Is Rebellious Captives legal in Standard, Modern, and Commander?

Rebellious Captives is legal in: Standard, Modern, Pioneer, Legacy, Vintage, Commander, Pauper, Historic.

Rebellious Captives

Q: What type of card is Rebellious Captives?

Rebellious Captives is a Creature — Human Peasant Ally. Its oracle text reads: "Exhaust — {6}: Put two +1/+1 counters on this creature, then earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped. Activate each exhaust ability only once.)"

Creature — Human Peasant Ally

$0.15 ↗20 similarCommander, Modern

Exhaust — : Put two +1/+1 counters on this creature, then earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped. Activate each exhaust ability only once.)