Is Volcanic Geyser legal in Standard, Modern, and Commander?

Volcanic Geyser is legal in: Modern, Pioneer, Legacy, Vintage, Commander, Historic.

What type of card is Volcanic Geyser?

Volcanic Geyser is an Instant. Its oracle text reads: "Volcanic Geyser deals X damage to any target."

Instant

Volcanic Geyser deals X damage to any target.

Set Mirage

Rarity Uncommon

Artist David O'Connor

Instant Modern Pioneer Commander