Hydra - Grakmaw, Skyclave Ravager (Golgari)

#Commander:
Grakmaw, Skyclave Ravager (znr) 223 #top10k

#Creature (45):

Clockwork Hydra (tsp) 253

Voracious Hydra (m20) 200 #top10k #Trample #Fight

Bristling Hydra (kld) 147

Oran-Rief Hydra (pbfz) 181 #top10k #Trample #Landfall

Kalonian Hydra (m14) 181 #top10k #Trample

Capricopian (c20) 58 #top10k

Sprouting Phytohydra (dis) 95 #Defender

Steelbane Hydra (eld) 322 #top10k

Vastwood Hydra (m14) 198 #top10k

Genesis Hydra (m15) 176 #top10k

Mistcutter Hydra (ths) 162 #top10k #Protection #Haste

Whiptongue Hydra (c18) 36 #top10k #Reach

Nyxborn Hydra (mh3) 164 #top10k #Reach #Trample #Bestow

Hydra Omnivore (cmd) 161 #top10k

Polukranos, World Eater (ddl) 43 #top10k #Monstrosity

Briar Hydra (dmu) 286 #Trample #Domain

Stumpsquall Hydra (cmr) 367

Phyrexian Hydra (mbs) 85 #top10k #Infect

Scourge of Skola Vale (bng) 137 #Trample

Polukranos, Unchained (thb) 224 #top10k #Fight #Escape

Nessian Wilds Ravager (pbng) 129★ #Fight #Tribute

Ironscale Hydra (thb) 296 #top10k

Benevolent Hydra (j22) 38 #top10k

Mossborn Hydra (fdn) 107 #Trample #Landfall #NEW

Ramunap Hydra (hou) 130 #Reach #Vigilance #Trample

Hydra Broodmaster (jou) 128 #top10k #Monstrosity

Apex Devastator (cmr) 217 #top10k #Cascade

Domesticated Hydra (cn2) 63 #Monstrosity

Khalni Hydra (roe) 192 #Trample

Feral Hydra (ala) 131 #top10k

Lifeblood Hydra (c14) 45 #top10k #Trample

Hungering Hydra (m19) 189 #top10k

Neverwinter Hydra (afc) 310 #top10k #Trample #Ward

Hooded Hydra (ktk) 136 #top10k #Morph

Managorger Hydra (ori) 186 #top1k #Trample

Protean Hydra (m10) 200 #top10k

Honored Hydra (akh) 172 #Trample #Embalm

Ulvenwald Hydra (soi) 235 #top10k #Reach

Gargos, Vicious Watcher (m20) 172 #top10k #Vigilance #Fight

Primordial Hydra (m12) 189 #top10k

Goldvein Hydra (otj) 167 #top10k #Vigilance #Treasure #Haste #Trample

Wildwood Scourge (m21) 214 #top10k

Wren's Run Hydra (mh2) 183 #top10k #Reach #Reinforce

Heroes' Bane (pjou) 126★ #top10k

Rampant Rejuvenator (nec) 28 #top10k

#Changelings (27):

Bloodline Pretender (khm) 235 #top10k #Changeling

Guardian Gladewalker (khm) 174 #top10k #Changeling

Venomous Changeling (mh1) 114 #top10k #Changeling #Deathtouch

Maskwood Nexus (khm) 240 #top1k

Amorphous Axe (mh1) 219 #Equip

Realmwalker (khm) 188 #top1k #Changeling

Gladewalker Ritualist (khm) 392 #Changeling

Skeletal Changeling (lrw) 140 #top10k #Changeling

Runed Stalactite (lrw) 260 #Equip

Three Tree Mascot (blb) 251 #top10k #Changeling

Woodland Changeling (lrw) 242 #top10k #Changeling

Nameless Inversion (lrw) 128 #top10k #Changeling

Ghostly Changeling (lrw) 116 #Changeling

Webweaver Changeling (mh1) 192 #Reach #Changeling

Game-Trail Changeling (mor) 123 #Trample #Changeling

Cairn Wanderer (lrw) 105 #top10k #Changeling

Graveshifter (mh1) 94 #top10k #Changeling

Littjara Glade-Warden (khm) 182 #Changeling

Changeling Titan (lrw) 200 #Champion #Changeling

Formless Genesis (dsc) 34 #Retrace #Changeling

Chameleon Colossus (mor) 116 #top10k #Protection #Changeling

Changeling Outcast (mh1) 82 #top1k #Changeling

Barkform Harvester (blb) 243 #top10k #Reach #Changeling

Masked Vandal (khm) 184 #top10k #Changeling

Arachnoform (khm) 159 #Enchant

Moonglove Changeling (mor) 67 #Changeling

Universal Automaton (mh1) 235 #top10k #Changeling

#Support (2):

Hydra's Growth (thb) 172 #top10k #Enchant

Lair of the Hydra (afr) 259 #top10k

#Non-commander-legal (5):

Multi-Headed (ust) 117 #top100 #Augment

Hydradoodle (ust) 112 #top100 #Reach #Trample

Hydra (tc20) 12 #top100

Hydra (tjou) 4 #top100

Hydra (tznr) 9 #top100

#r= gives the edhrec rank of the card; the lower the ranking, the more decks the card is played in.