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.)
No shop on TCG.shopping has this in stock right now.
Run a card shop?
Circular LogicFriday Night Magic 2006 · 8 · rare$6.28
Circular LogicRainbow FoilSecret Lair Drop · 1519 · rare$4.59
Circular LogicSecret Lair Drop · 1519 · rare$4.00
Circular LogicTorment · 33 · uncommon$3.49
Circular LogicTORWorld Championship Decks 2002 · uncommon$1.81
Circular LogicTORWorld Championship Decks 2002 · uncommon$1.41
Circular LogicTORWorld Championship Decks 2003 · uncommon$0.95
Circular LogicUltimate Masters · 47 · uncommon$0.31
Circular LogicTORWorld Championship Decks 2003 · uncommon$0.30
Circular LogicThe List · 47 · uncommon$0.29
Circular LogicDominaria Remastered · 42 · uncommon$0.27
City of Brass8EDrare$23.45
Goblin SharpshooterONSrare$21.88
Bloodstained MireONSrare$17.93
Patriarch's BiddingONSrare$17.45
Flooded StrandONSrare$15.00
Nantuko VigilanteLGN · SBcommon$14.96
Bloodstained MireONSrare$14.54
Cabal TherapyJUD · SBuncommon$12.98
Cabal TherapyJUDuncommon$12.77
City of Brass8EDrare$11.51
EntombODYrare$11.29
AquamoebaTORcommon$10.50