#Commander:
Stinging Lionfish (thb) 69
#Creature (20):
Ancient Carp (dtk) 44
Breaching Hippocamp (ths) 43 #Flash
Bubble Smuggler (mkm) 41 #Disguise
Cloud Manta (bfz) 71 #Flying
Coral Eel (por) 49
Dandân (arn) 12
Devouring Deep (leg) 50 #Landwalk #Islandwalk
Manta Ray (wth) 42
Moat Piranhas (m20) 67 #Defender
Mystic Skyfish (m21) 326
Piranha Fly (dsk) 70 #Flying
School of Piranha (exo) 45
Shipwreck Moray (aer) 45
Skitter Eel (rna) 53 #Adapt
Sky-Eel School (som) 44 #Flying
Skyreach Manta (5dn) 152 #Flying #Sunburst
Skyswimmer Koi (neo) 79 #Flying
Slipstream Eel (ons) 114 #Cycling
Vivid Flying Fish (gs1) 4
Windrider Eel (zen) 78 #Landfall #Flying
#Changelings (27):
Bloodline Pretender (khm) 235 #top10k #Changeling
Mistwalker (khm) 68 #Changeling #Flying
Mistform Mask (ons) 94 #Enchant
Mistform Seaswift (lgn) 45 #Flying #Morph
Maskwood Nexus (khm) 240 #top1k
Amorphous Axe (mh1) 219 #Equip
Mistform Wakecaster (lgn) 48 #Flying
Mistform Warchief (scg) 43
Mistform Sliver (lgn) 46
Mothdust Changeling (mor) 42 #top10k #Changeling
Runed Stalactite (lrw) 260 #Equip
Three Tree Mascot (blb) 251 #top10k #Changeling
Mistform Mutant (ons) 95
Mistform Stalker (ons) 98
Mistform Shrieker (ons) 96 #Flying #Morph
Turtleshell Changeling (lrw) 94 #Changeling
Mistform Dreamer (ons) 93 #Flying
Shapesharer (lrw) 85 #top10k #Changeling
Littjara Kinseekers (khm) 66 #Scry #Changeling
Mistform Skyreaver (ons) 97 #Flying
Mistform Wall (ons) 99
Barkform Harvester (blb) 243 #top10k #Reach #Changeling
Wings of Velis Vel (lrw) 97 #Changeling
Amoeboid Changeling (lrw) 51 #top10k #Changeling
Ego Erasure (lrw) 59 #Changeling
Universal Automaton (mh1) 235 #top10k #Changeling
Mistform Ultimus (lgn) 47
#Support (7):
Fishing Pole (fdn) 128 #Equip #NEW
Mind Spiral (blb) 59 #Gift
Into the Flood Maw (blb) 52 #top10k #Gift
Ichthyomorphosis (thb) 51 #Enchant
Starforged Sword (blb) 249 #Gift #Equip
Sleep with the Fishes (snc) 61 #Enchant
Fountainport (blb) 253 #top10k #Treasure
#Non-commander-legal (7):
Fish (twho) 10 #top100
Blufferfish (unf) 325
Fish // Kraken (ta25) 5★ #top100
Jasconian Isle (cmb1) 117 #top100
Mer Man (ust) 39 #top100
Fish (tsnc) 4 #top100
Fish (tc14) 8 #top100
#r= gives the edhrec rank of the card; the lower the ranking, the more decks the card is played in.