Is Centaur Chieftain legal in Standard, Modern, and Commander?

Centaur Chieftain is legal in: Legacy, Vintage, Commander.

Centaur Chieftain

Q: What type of card is Centaur Chieftain?

Centaur Chieftain is a Creature — Centaur. Its oracle text reads: "Haste Threshold — As long as seven or more cards are in your graveyard, this creature has "When this creature enters, creatures you control get +1/+1 and gain trample until end of turn." Power/Toughness: 3/3"

Creature — Centaur

Haste

Threshold — As long as seven or more cards are in your graveyard, this creature has "When this creature enters, creatures you control get +1/+1 and gain trample until end of turn."

Power/Toughness: 3/3

Set Eternal Masters

Rarity Uncommon

Mana Value 4

Artist Justin Sweet

Collector # 160

Scryfall