1 Aboleth Spawn (CLB) 612
1 Arcane Signet (ELD) 331
1 Arvinox, the Mind Flail (DSC) 130
1 Ashiok, Sculptor of Fears (THB) 274
1 Brainstealer Dragon (OTC) 127
1 Bruvac the Grandiloquent (PLIST) 10
1 Captain N'ghathrod (CLB) 931
1 Command Tower (ELD) 333
1 Commander's Sphere (ECC) 139
1 Consuming Aberration (FDN) 238
1 Counterspell (FCA) 4
1 Court of Cunning (CMR) 63
1 Cruel Somnophage (WOE) 286
1 Darkslick Shores (ONE) 372
1 Deadly Cover-Up (MKM) 83
1 Didn't Say Please (ELD) 42
1 Dimir Signet (CLU) 221
1 Dismal Backwater (TDM) 254
1 Dream Harvest (ECL) 216
1 Drowned Catacomb (M13) 223
1 Duskmantle Guildmage (GTC) 158
1 Elder Brain (CLB) 125
1 Evolving Wilds (ECL) 264
1 Exotic Orchard (SOC) 369
1 Extract from Darkness (PLIST) 84
1 Fractured Sanity (CLB) 722
1 Gloomlake Verge (DSK) 260
1 Go for the Throat (BRO) 102
1 Guiltfeeder (CLB) 756
1 Hedron Crab (ZEN) 47
1 Imperious Mindbreaker (VOC) 33
1 Infernal Grasp (MID) 107
1 Intellect Devourer (CLB) 575
11 Island (SOS) 274
1 Jace, the Perfected Mind (ONE) 325
1 Kitsune's Technique (TMT) 42
1 Lazav, Dimir Mastermind (GTC) 174
1 Maddening Cacophony (ZNR) 330
1 Memory Erosion (ALA) 50
1 Mesmeric Orb (SLD) 2457
1 Mind Flayer (AFR) 308
1 Mind Stone (SOC) 352
1 Mindcrank (NPH) 144
1 Mindleech Mass (RAV) 215
1 Negate (TMT) 47
1 Nemesis of Reason (ARB) 28
1 Nighthowler (THS) 98
1 Patient Rebuilding (M19) 67
1 Phenax, God of Deception (BNG) 152
1 Propaganda (FIC) 268
1 Psychic Corrosion (M19) 68
1 Realmbreaker, the Invasion Tree (MOM) 263
1 Rise of the Dark Realms (FIC) 283
1 Ruin Crab (ZNR) 295
1 Sewer Nemesis (PLIST) 75
1 Shadow Kin (MIC) 16
1 Shipwreck Marsh (MID) 267
1 Sol Ring (SOC) 128
1 Sphinx's Tutelage (PLIST) 76
1 Sunken Hollow (BFZ) 249
11 Swamp (SOS) 276
1 Syr Konrad, the Grim (ELD) 107
1 Teferi's Tutelage (M21) 296
1 Temple of Deceit (FDN) 697
1 Terisian Mindbreaker (BRO) 322
1 Terramorphic Expanse (SOS) 265
1 The Mindskinner (DSK) 66
1 Thought Collapse (RNA) 57
1 Thought Scour (DKA) 52
1 Three Steps Ahead (PP_OTJ) 75
1 Uchuulon (CLB) 673
1 Umbris, Fear Manifest (VOC) 38
1 Undercity Sewers (PZA) 20
1 Underground River (BRO) 267
1 Valgavoth, Terror Eater (DSK) 120
1 Valgavoth's Faithful (DSK) 121
1 Virtue of Persistence (WOE) 281
1 Wrexial, the Risen Deep (WWK) 120
1 Zellix, Sanity Flayer (CLB) 652
1 Zombify (FDN) 187