Is Mount Doom legal in Standard, Modern, and Commander?

Mount Doom is legal in: Modern, Legacy, Vintage, Commander, Historic.

What type of card is Mount Doom?

Mount Doom is a Legendary Land. Its oracle text reads: "{T}, Pay 1 life: Add {B} or {R}. {1}{B}{R}, {T}: Mount Doom deals 1 damage to each opponent. {5}{B}{R}, {T}, Sacrifice Mount Doom and a legendary artifact: Choose up to two creatures, then destroy the rest. Activate only as a sorcery."