Is Sunforger legal in Standard, Modern, and Commander?

Sunforger is legal in: Modern, Legacy, Vintage, Commander.

Sunforger

Q: What type of card is Sunforger?

Sunforger is an Artifact — Equipment. Its oracle text reads: "Equipped creature gets +4/+0. {R}{W}, Unattach this Equipment: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle. Equip {3}"

Artifact — Equipment

Equipped creature gets +4/+0.

, Unattach this Equipment: Search your library for a red or white instant card with mana value 4 or less and cast that card without paying its mana cost. Then shuffle.