Is Macetail Hystrodon legal in Standard, Modern, and Commander?

Macetail Hystrodon is legal in: Legacy, Vintage, Commander, Pauper.

Macetail Hystrodon

Q: What type of card is Macetail Hystrodon?

Macetail Hystrodon is a Creature — Beast. Its oracle text reads: "First strike, haste Cycling {3} ({3}, Discard this card: Draw a card.) *The goblins tracked the hystrodon with much stealth and cunning. Then they were eaten with much pain and yelling.* Power/Toughness: 4/4"