Reweave
Instant — Arcane
Target permanent's controller sacrifices it. If the player does, they reveal cards from the top of their library until they reveal a permanent card that shares a card type with the sacrificed permanent, put that card onto the battlefield, then shuffle.
Splice onto Arcane 
(As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
- CMC
- 6
- Mana cost
- Color identity
- U
- Rarity
- rare
- Set
- Champions of Kamigawa
- Price
- $0.55
- EDHREC rank
- #16645
Reweave destroys a permanent and replaces it with whatever its controller finds at random in their library — a chaos effect that scales entirely on what it hits. The splice-onto-arcane clause is the real hook: you can staple this effect onto any arcane spell for its splice cost, generating repeated permanent-swap chaos without consuming an extra card.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Reweave earns its slot, specifically in arcane-tribal or chaos-themed decks where the splice mechanic stops being a novelty and starts being a resource multiplier. In competitive Legacy and Vintage, it sees essentially no play — the formats punish sorcery-speed permanent interaction that doesn't guarantee an outcome, and the arcane subtype has no meaningful support there. Modern is legal but similarly uninterested; there's no arcane shell to splice onto and far more efficient removal at the same cost. Reweave lives and dies by whether your Commander deck can trigger splice repeatedly, and in the right shell it's a genuine card-advantage engine disguised as a removal spell.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.55 bulk tier
At $0.55, Reweave sits firmly in bulk territory despite being the only splice-onto-arcane card that destroys and replaces permanents. That price reflects narrow format demand, not narrow power — in the arcane decks that actually want it, this is a fifty-cent staple that would cost several dollars if it fit a wider archetype.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.