Is Ace, Fearless Rebel legal in Standard, Modern, and Commander?

Ace, Fearless Rebel is legal in: Legacy, Vintage, Commander.

Ace, Fearless Rebel

Q: What type of card is Ace, Fearless Rebel?

Ace, Fearless Rebel is a Legendary Creature — Human Rebel. Its oracle text reads: "Nitro-9 — Whenever Ace attacks, you may sacrifice an artifact. When you do, put a +1/+1 counter on Ace, then it fights up to one target creature defending player controls. Doctor's companion (You can have two commanders if the other is the Doctor.) *"Wicked!"* Power/Toughness: 2/2"

Legendary Creature — Human Rebel

Nitro-9 — Whenever Ace attacks, you may sacrifice an artifact. When you do, put a +1/+1 counter on Ace, then it fights up to one target creature defending player controls.

Doctor's companion (You can have two commanders if the other is the Doctor.)

*"Wicked!"*

Power/Toughness: 2/2

Set Doctor Who

Rarity Rare

Mana Value 4

Artist Colin Boyer

Collector # 98

Scryfall