Is Soul Burn legal in Standard, Modern, and Commander?

Soul Burn is legal in: Legacy, Vintage, Commander, Pauper.

What type of card is Soul Burn?

Soul Burn is a Sorcery. Its oracle text reads: "Spend only black and/or red mana on X.Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of {B} spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness."

Soul Burn

Sorcery

Spend only black and/or red mana on X.<br>Soul Burn deals X damage to any target. You gain life equal to the damage dealt, but not more than the amount of spent on X, the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Set Ice Age

Rarity Common

Artist Rob Alexander