No commander exists in these colours yet.
#Creature (27):
Akroan Horse (ths) 210 #top10k #Defender
Armored Warhorse (m12) 7
Bill the Pony (ltr) 3 #top10k #Food
Bronze Horse (leg) 276 #Trample
Calamity, Galloping Inferno (otj) 116 #top10k #Saddle #Haste
Chrome Steed (som) 142 #Metalcraft
Clockwork Steed (hml) 103
Crested Sunmare (hou) 6 #top10k
Diamond Mare (m19) 231 #top10k
Dwarven Pony (hml) 70
Hipparion (ice) 31
Keleth, Sunmane Familiar (cmr) 28 #top10k #Partner
Lightning Mare (m19) 151
Motivated Pony (ltc) 125 #top10k #Haste #Trample
Sacred Prey (mmq) 268
Shadowfax, Lord of Horses (ltr) 227
Shield Mare (m19) 37
Tarpan (ice) 267
Temur Charger (ktk) 153 #Morph
Thundering Mightmare (voc) 37 #top10k #Soulbond
Thundermare (por) 152 #Haste
Timbermare (plc) 140 #Haste #Echo
Trenching Steed (pcy) 26
Vine Mare (m19) 207 #Hexproof
Wandermare (eld) 204
Workhorse (exo) 142
Zodiac Horse (ptk) 159 #Landwalk #Islandwalk
#Changelings (33):
Bloodline Pretender (khm) 235 #top10k #Changeling
Guardian Gladewalker (khm) 174 #top10k #Changeling
Maskwood Nexus (khm) 240 #top1k
Avian Changeling (lrw) 4 #top10k #Changeling #Flying
Blades of Velis Vel (lrw) 152 #Changeling
Amorphous Axe (mh1) 219 #Equip
Realmwalker (khm) 188 #top1k #Changeling
Changeling Sentinel (mor) 6 #Vigilance #Changeling
Gladewalker Ritualist (khm) 392 #Changeling
Mirror Entity (lrw) 31 #top1k #Changeling
Runed Stalactite (lrw) 260 #Equip
War-Spike Changeling (mor) 112 #Changeling
Three Tree Mascot (blb) 251 #top10k #Changeling
Woodland Changeling (lrw) 242 #top10k #Changeling
Webweaver Changeling (mh1) 192 #Reach #Changeling
Impostor of the Sixth Pride (mh1) 14 #top10k #Changeling
Game-Trail Changeling (mor) 123 #Trample #Changeling
Shields of Velis Vel (lrw) 39 #top10k #Changeling
Changeling Hero (lrw) 9 #Lifelink #Champion #Changeling
Littjara Glade-Warden (khm) 182 #Changeling
Irregular Cohort (mh1) 15 #top10k #Changeling
Changeling Titan (lrw) 200 #Champion #Changeling
Fire-Belly Changeling (lrw) 164 #Changeling
Formless Genesis (dsc) 34 #Retrace #Changeling
Chameleon Colossus (mor) 116 #top10k #Protection #Changeling
Barkform Harvester (blb) 243 #top10k #Reach #Changeling
Valiant Changeling (mh1) 34 #top10k #Changeling
Masked Vandal (khm) 184 #top10k #Changeling
Arachnoform (khm) 159 #Enchant
Taurean Mauler (mor) 109 #top1k #Changeling
Universal Automaton (mh1) 235 #top10k #Changeling
Crib Swap (lrw) 11 #top10k #Changeling
Changeling Berserker (lrw) 160 #Haste #Champion #Changeling
#Non-commander-legal (9):
The Dilu Horse (da1) RG03d #top100 #Partner #Horsemanship
Incisor Steed (da1) CW03 #top100 #Vigilance
Gift Horse (ust) 183 #top100
Phobos (tacr) 5 #top100
Horse (twho) 36 #top100
Cinnamon, Seasoned Steed (da1) RA01 #top100
Ordinary Pony (ust) 17 #top100
Lightning Colt (cmb1) 57 #top100
Horse (thou) 10 #top100
#r= gives the edhrec rank of the card; the lower the ranking, the more decks the card is played in.