Logic Knot (52) (FUT)
| Set: | Future Sight |
| Type: | Instant |
| Rarity: | Common |
| Cost: | XUU |
| Colors: | U |
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Counter target spell unless its controller pays {X}.
Counter target spell unless its controller pays {X}.