Boom // Bust

Time Spiral Remastered (TSR) #156 · Rare · Sorcery // Sorcery

Mana cost: {1}{R} // {5}{R}

Destroy target land you control and target land you don't control.
//
Destroy all lands.

Illustrated by John Avon · Released March 19, 2021

Prices

Nonfoil price since August 29, 2026: up $0.66 USD (52.4%) to $1.92 USD; low $1.26 USD, high $2.81 USD.

Printings

  1. Time Spiral Remastered #156 (this printing) · Rare · 2021 · $1.92 USD
  2. Planar Chaos #112 (PLC) · Rare · 2007 · $1.64 USD

Legality

Rulings

  1. 2021-03-19 · wotc — If one of Boom's targets becomes an illegal target, the other is still destroyed.
  2. 2022-12-08 · wotc — Each split card is a single card. For example, if you discard a split card, you've discarded one card, not two. If an effect counts the number of sorcery cards in your graveyard, Assault // Battery counts once, not twice.
  3. 2022-12-08 · wotc — Split cards have two card faces on a single card. The characteristics of the half you didn't cast are ignored while the spell is on the stack.
  4. 2022-12-08 · wotc — A split card's characteristics are a combination of its two halves while it is not on the stack. For example, Assault // Battery has a mana value of 5 while it is in your library. If an effect allows you to search your library for a card with mana value 4 or less, you can't find Assault // Battery.
  5. 2022-12-08 · wotc — Each split card has two names. If an effect instructs you to choose a card name, you may choose one of those names, but not both.
  6. 2022-12-08 · wotc — If you copy a spell that's half of a split card, the copy copies that same half. For example, if you copy Assault, the copy is also Assault, not Battery.
  7. 2022-12-08 · wotc — If an effect allows you to cast a spell with certain characteristics, consider only the characteristics of the half you're casting. For example, if an effect allows you to cast a sorcery spell with mana value 2 or less from among cards in your graveyard, you could cast Assault this way, but not Battery.
  8. 2022-12-08 · wotc — To cast a split card, choose one of its halves to cast. There's no way to cast both halves of this split card.

All cards in Time Spiral Remastered (TSR)