1 Apocalypse Hydra (BBD) 217
1 Assemble the Entmoot (LTC) 36
1 Benevolent Hydra (J22) 38
1 Cancel (FDN) 505
1 Cathars' Crusade (AVR) 10
1 Corpsejack Menace (RTR) 152
1 Corrosive Gale (NPH) 107
1 Counterspell (FCA) 4
1 Death's Presence (RTR) 121
1 Deprive (ROE) 59
1 Diabolic Tutor (KLD) 75
1 Dissipate (MID) 49
1 Domesticated Hydra (PLIST) 63
1 Elixir of Immortality (M14) 209
1 Feral Hydra (ALA) 131
16 Forest (TLA) 286
1 Freed from the Real (SOK) 38
1 Gaea's Blessing (DOM) 161
1 Gargos, Vicious Watcher (M20) 172
1 Gavony Township (ISD) 239
1 Genesis Hydra (M15) 176
1 Goldvein Hydra (OTJ) 167
1 Grakmaw, Skyclave Ravager (ZNR) 223
1 Gyrus, Waker of Corpses (C18) 41
1 Halimar Depths (WWK) 137
1 Heroes' Bane (FDN) 639
1 Hooded Hydra (KTK) 136
1 Hungering Hydra (M19) 189
1 Hydra Broodmaster (JOU) 128
1 Hydra Omnivore (DSC) 185
1 Hydroid Krasis (RNA) 183
1 Ionize (GRN) 179
1 Ironscale Hydra (THB) 296
4 Island (TLA) 283
1 Kalonian Hydra (BLC) 226
1 Lifeblood Hydra (CMM) 303
1 Make a Wish (ISD) 192
1 Managorger Hydra (BLC) 230
1 Mastermind's Acquisition (RIX) 77
1 Mistcutter Hydra (THS) 162
1 Mortuary Mire (BFZ) 240
5 Mountain (TLA) 285
1 Mystic Sanctuary (ELD) 247
1 Nature's Spiral (DOM) 175
1 Oran-Rief Hydra (BFZ) 181
1 Phytohydra (RAV) 218
5 Plains (TLA) 282
1 Polukranos Reborn (MOM) 200
1 Polukranos, World Eater (THS) 172
1 Primal Rage (PLIST) 112
1 Primordial Hydra (M13) 183
1 Profane Tutor (MH2) 97
1 Progenitus (FDN) 244
1 Razaketh's Rite (HOU) 74
1 Reclaim (ORI) 195
1 Repopulate (GU) 111
1 Revive (M13) 187
1 Reviving Melody (JOU) 138
1 Savageborn Hydra (DGM) 100
1 Scale Blessing (DTK) 35
1 Shivan Devastator (DMU) 143
1 Skyreaping (BNG) 140
1 Spell Rupture (GTC) 52
1 Spidersilk Armor (MM) 273
1 Steelbane Hydra (ELD) 322
4 Swamp (TLA) 284
1 Undermine (IN) 282
1 Vastwood Hydra (M14) 198
1 Vigor (LRW) 240
1 Whiptongue Hydra (NEC) 134
1 Windstorm (KTK) 157
1 Zaxara, the Exemplary (DMC) 176

1 Apex Devastator (M3C) 220
1 Bioessence Hydra (WAR) 186
1 Doubling Season (FDN) 216
1 Khalni Hydra (ROE) 192
1 Maskwood Nexus (KHM) 240
1 Neverwinter Hydra (AFC) 41
1 Protean Hydra (M11) 194