Is Quenchable Fire legal in Standard, Modern, and Commander?

Quenchable Fire is legal in: Modern, Legacy, Vintage, Commander, Pauper.

Quenchable Fire

Q: What type of card is Quenchable Fire?

Quenchable Fire is a Sorcery. Its oracle text reads: "Quenchable Fire deals 3 damage to target player or planeswalker. It deals an additional 3 damage to that player or planeswalker at the beginning of your next upkeep step unless that player or that planeswalker's controller pays {U} before that step."

Sorcery

Quenchable Fire deals 3 damage to target player or planeswalker. It deals an additional 3 damage to that player or planeswalker at the beginning of your next upkeep step unless that player or that planeswalker's controller pays before that step.