Logic Knot
Instant
Delve (Each card you exile from your graveyard while casting this spell pays for 
.)
Counter target spell unless its controller pays 
.
- CMC
- 2
- Mana cost
- Color identity
- U
- Rarity
- common
- Set
- Future Sight
- Price
- $0.26
- EDHREC rank
- #12351
Logic Knot is a hard counter — not a maybe, not a tax — for two mana, as long as your graveyard has done any work at all. The delve cost means it costs less the longer the game runs, which inverts the usual problem with late-game countermagic.
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 | legal |
| oathbreaker | legal |
In Commander, Logic Knot competes in a crowded two-mana counter slot, but delve makes it reliably cheaper than Counterspell by mid-game once fetchlands, cantrips, and early interaction have stocked the yard. In Modern and Legacy, it has seen play in controlling blue shells precisely because those formats fill graveyards fast — fetch-shock mana bases alone fuel it by turn three. Pauper is where Logic Knot genuinely shines at its ceiling: hard counters are scarce at common, and the delve clause is easy to satisfy in the format's blue control and tempo decks. Vintage has better options at every point on the curve, so it stays on the bench there.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.26 bulk tier
At $0.26, Logic Knot is bulk — you're paying for cardboard, not the effect. That price is stable; it sees enough Modern and Pauper demand to keep it from hitting true zero, but not enough to spike.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.