Is Simoon legal in Standard, Modern, and Commander?

Simoon is legal in: Legacy, Vintage, Commander.

What type of card is Simoon?

Simoon is an Instant. Its oracle text reads: "Simoon deals 1 damage to each creature target opponent controls."

Instant

Simoon deals 1 damage to each creature target opponent controls.

Set Visions

Rarity Uncommon

Artist Randy Gallegos

Instant Commander Legacy Vintage