Is Planar Gate legal in Standard, Modern, and Commander?

Planar Gate is legal in: Legacy, Vintage, Commander.

What type of card is Planar Gate?

Planar Gate is an Artifact. Its oracle text reads: "Creature spells you cast cost {2} less to cast."

Artifact

Creature spells you cast cost less to cast.

Set Legends

Rarity Rare

Artist Melissa A. Benson

Artifact Commander Legacy Vintage