#Commander:
Polukranos, Unchained (thb) 224 #top10k #Fight #Escape
#Creature (47):
Primordial Hydra
(m12) 189 #top10k
Khalni Hydra
(roe) 192 #Trample
Protean Hydra
(m10) 200 #top10k
Honored Hydra
(akh) 172 #Trample #Embalm
Ulvenwald Hydra
(soi) 235 #top10k #Reach
Briar Hydra
(dmu) 286 #Trample #Domain
Rampant Rejuvenator
(nec) 28 #top10k
Whiptongue Hydra
(c18) 36 #top10k #Reach
Hooded Hydra
(ktk) 136 #top10k #Morph
Stumpsquall Hydra
(cmr) 367
Rampaging Aetherhood
(drc) 15 #Trample #Ward
Mossborn Hydra
(fdn) 107 #top10k #Trample #Landfall
Feral Hydra
(ala) 131 #top10k
Neverwinter Hydra
(afc) 310 #top10k #Trample #Ward
Sprouting Phytohydra
(dis) 95 #Defender
Clockwork Hydra
(tsp) 253
Warden of the Grove
(tdm) 166 #NEW
Hydra Omnivore
(cmd) 161 #top10k
Hydra Broodmaster
(jou) 128 #top10k #Monstrosity
Domesticated Hydra
(cn2) 63 #Monstrosity
Wildwood Scourge
(m21) 214 #top10k
Hungering Hydra
(m19) 189 #top10k
Bristling Hydra
(kld) 147
Ramunap Hydra
(hou) 130 #Reach #Vigilance #Trample
Wren's Run Hydra
(mh2) 183 #top10k #Reach #Reinforce
Benevolent Hydra
(j22) 38 #top10k
Oran-Rief Hydra
(pbfz) 181 #top10k #Trample #Landfall
Grakmaw, Skyclave Ravager
(znr) 223 #top10k
Phyrexian Hydra
(mbs) 85 #Infect
Ironscale Hydra
(thb) 296 #top10k
Nessian Wilds Ravager
(pbng) 129★ #Fight #Tribute
Genesis Hydra
(m15) 176 #top10k
Goldvein Hydra
(otj) 167 #top10k #Vigilance #Treasure #Haste #Trample
Nyxborn Hydra
(mh3) 164 #top10k #Reach #Trample #Bestow
Heroes' Bane
(pjou) 126★ #top10k
Capricopian
(c20) 58 #top10k
Mistcutter Hydra
(ths) 162 #top10k #Protection #Haste
Kalonian Hydra
(m14) 181 #top10k #Trample
Scourge of Skola Vale
(bng) 137 #Trample
Polukranos, World Eater
(ddl) 43 #top10k #Monstrosity
Gargos, Vicious Watcher
(m20) 172 #top10k #Vigilance #Fight
Apex Devastator
(cmr) 217 #top10k #Cascade
Voracious Hydra
(m20) 200 #top10k #Trample #Fight
Vastwood Hydra
(m14) 198 #top10k
Managorger Hydra
(ori) 186 #top1k #Trample
Steelbane Hydra
(eld) 322 #top10k
Lifeblood Hydra
(c14) 45 #top10k #Trample
#Changelings (27):
Changeling Outcast
(mh1) 82 #top1k #Changeling
Formless Genesis
(dsc) 34 #top10k #Retrace #Changeling
Arachnoform
(khm) 159 #Enchant
Bloodline Pretender
(khm) 235 #top10k #Changeling
Moonglove Changeling
(mor) 67 #Changeling
Game-Trail Changeling
(mor) 123 #Trample #Changeling
Maskwood Nexus
(khm) 240 #top1k
Three Tree Mascot
(blb) 251 #top10k #Changeling
Chameleon Colossus
(mor) 116 #top10k #Protection #Changeling
Cairn Wanderer
(lrw) 105 #top10k #Changeling
Ghostly Changeling
(lrw) 116 #Changeling
Runed Stalactite
(lrw) 260 #Equip
Nameless Inversion
(lrw) 128 #top10k #Changeling
Universal Automaton
(mh1) 235 #top10k #Changeling
Realmwalker
(khm) 188 #top1k #Changeling
Amorphous Axe
(mh1) 219 #Equip
Venomous Changeling
(mh1) 114 #top10k #Changeling #Deathtouch
Changeling Titan
(lrw) 200 #Champion #Changeling
Littjara Glade-Warden
(khm) 182 #Changeling
Webweaver Changeling
(mh1) 192 #Reach #Changeling
Graveshifter
(mh1) 94 #top10k #Changeling
Barkform Harvester
(blb) 243 #top10k #Reach #Changeling
Guardian Gladewalker
(khm) 174 #top10k #Changeling
Masked Vandal
(khm) 184 #top10k #Changeling
Gladewalker Ritualist
(khm) 392 #Changeling
Skeletal Changeling
(lrw) 140 #top10k #Changeling
Woodland Changeling
(lrw) 242 #top10k #Changeling
#Support (1):
Lair of the Hydra
(afr) 259 #top10k
#Non-commander-legal (5):
Hydra
(tjou) 4 #top100
Multi-Headed
(ust) 117 #top100 #Augment
Hydradoodle
(ust) 112 #top100 #Reach #Trample
Hydra
(tc20) 12 #top100
Hydra
(tznr) 9 #top100