Jaya's Immolating Inferno [Dominaria]

Set: Dominaria Type: Legendary Sorcery Rare Cost: {X}{R}{R} (You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Jaya's Immolating Inferno deals X damage to each of up to three targets. Centuries ago, a pyromancer's spark ignited a fiery conflagration.