Circular Logic

{2}{U} · Instant · from $0.28

Counter target spell unless its controller pays {1} for each card in your graveyard.

Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Format legality

Dimir (Premodern, 3.6% of the meta): 1.9 in the main deck of 18% of lists
Mono-Green Basking Rootwalla (Premodern, 1.9% of the meta): 3.8 in the main deck of 24% of lists
Tireless Tribe (Pauper, 0.6% of the meta): 4 in the main deck of 7% of lists
Azorius Dream Halls (Premodern, 0.5% of the meta): 1 in the main deck of 57% of lists