Is Moonhold legal in Standard, Modern, and Commander?

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

What type of card is Moonhold?

Moonhold is an Instant. Its oracle text reads: "Target player can't play lands this turn if {R} was spent to cast this spell and can't cast creature spells this turn if {W} was spent to cast this spell. (Do both if {R}{W} was spent.)"

Moonhold

Instant

Target player can't play lands this turn if was spent to cast this spell and can't cast creature spells this turn if was spent to cast this spell. (Do both if was spent.)