Cheapest priced copy (The List): $0.49 at Card Kingdom, near mint, their price list as of .
Odds // Ends 
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Instant // Instant · Rare · Dissension · #153
Flip a coin. If it comes up heads, counter target instant or sorcery spell. If it comes up tails, copy that spell and you may choose new targets for the copy.
Target player sacrifices two attacking creatures of their choice.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.49 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dissension | 153 | Rare | $0.59 | $3.99 |
| The List | DIS-153 | Rare | $0.49 | — |
8 rulings from Wizards of the Coast
- 1 May 2006The Odds coin flip has no winner or loser, and no player calls "heads" or "tails."
- 8 December 2022Each 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.
- 8 December 2022Each 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.
- 8 December 2022To cast a split card, choose one of its halves to cast. There's no way to cast both halves of this split card.
- 8 December 2022If 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.
- 8 December 2022A 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.
- 8 December 2022Split 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.
- 8 December 2022If 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.