Is Halfdane legal in Standard, Modern, and Commander?

Halfdane is legal in: Legacy, Vintage, Commander.

Halfdane

Q: What type of card is Halfdane?

Halfdane is a Legendary Creature — Shapeshifter. Its oracle text reads: "At the beginning of your upkeep, change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep."

Legendary Creature — Shapeshifter

At the beginning of your upkeep, change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep.

Set Legends

Rarity Rare

Artist Melissa A. Benson