Is Plunder legal in Standard, Modern, and Commander?

Plunder is legal in: Modern, Legacy, Vintage, Commander, Pauper.

What type of card is Plunder?

Plunder is a Sorcery. Its oracle text reads: "Destroy target artifact or land. Suspend 4—{1}{R} (Rather than cast this card from your hand, you may pay {1}{R} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)"

Plunder

Sorcery

Destroy target artifact or land.

Suspend 4— (Rather than cast this card from your hand, you may pay and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)