Sibling Rivalry
Sorcery
Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token. (It's an artifact with "
: Add 
. This mana can't be spent to cast a nonartifact spell.")
- CMC
- 4
- Mana cost
- Color identity
- R
- Rarity
- common
- Set
- The Brothers' War
- Price
- $0.20
- EDHREC rank
- #17807
Sibling Rivalry forces each player to sacrifice creatures down to the one with the highest power, which can gut go-wide boards while leaving the biggest threat standing — a narrow but occasionally backbreaking effect. The catch is that it doesn't touch players who are already at one creature or fewer, and unlike Dual Casting it offers no redundancy, so the impact is entirely meta-dependent.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | legal |
| oathbreaker | legal |
In Commander, Sibling Rivalry occupies a specific niche: it's a one-sided-ish board compression tool that punishes token strategies and wide creature builds while typically sparing the biggest threat at each table. Outside Commander, the card is legal in Legacy, Modern, Pioneer, Pauper, Vintage, and Oathbreaker, but sees essentially no competitive play in any of them — those formats either close games too quickly for a three-mana sorcery with conditional impact to matter, or have cleaner answers available. Sibling Rivalry is a Commander card through and through, and even there it earns a slot only in decks that consistently field one powerful creature and need help clearing out opposing token armies.
Key Combos
Combo lines featuring this card
Sibling RivalryDual CastingStorm-Kiln Artist
Infinite magecraft triggers; Infinite tapped Powerstone tokens
View on Commander Spellbook ↗Price Context
Current price
$0.20 bulk tier
At $0.20, Sibling Rivalry is deep bulk — you're paying for cardboard, not scarcity. Demand is too narrow and casual for that price to move meaningfully in either direction.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.