Games of brawl are not being counted for the dominaria yargle achievement. I believe I counted that there are at least 25 dominaria cards
Commander
1 Yargle, Glutton of Urborg (MUL) 84

Deck
1 Unseal the Necropolis (MOM) 128
31 Swamp (UST) 214
1 Tinybones Joins Up (OTJ) 108
1 Fungal Infection (DAR) 94
1 Phyrexian Arena (FDN) 180
1 Demonic Counsel (DSK) 92
1 Demonic Vigor (DAR) 85
1 Poet's Quill (STX) 82
1 Caligo Skin-Witch (DAR) 80
1 Dark Bargain (DAR) 83
1 Palantír of Orthanc (LTR) 247
1 Breach the Multiverse (MOM) 94
1 Grindstone (OTP) 62
1 Cut Down (DMU) 89
1 Monoist Gravliner (Y25) 11
1 Rat Colony (DAR) 101
1 Drudge Sentinel (DAR) 89
1 Scavenger's Talent (BLB) 111
1 Cabal Paladin (DAR) 79
1 Navigator's Compass (DAR) 225
1 Feral Abomination (DAR) 92
1 Coveted Prize (ZNR) 95
1 Corrupted Conviction (OTJ) 84
1 Blessing of Belzenlok (DAR) 77
1 Windgrace Acolyte (DAR) 112
1 Stronghold Confessor (DAR) 105
1 Deathbloom Thallid (M21) 94
1 Ashiok, Wicked Manipulator (WOE) 78
1 Short Sword (DAR) 229
1 Soul Salvage (DAR) 104
1 Cabal Evangel (DAR) 78
1 Thallid Omnivore (DAR) 106
1 Eviscerate (DAR) 91
1 Divest (DAR) 87
1 Desperate Bloodseeker (OTJ) 86
1 Jousting Lance (DAR) 221
1 Sparring Construct (DAR) 232
1 Doomsday Excruciator (DSK) 94
1 Toxin Analysis (MKM) 107
1 Flitting Guerrilla (MOM) 105
1 Diabolic Intent (BRO) 89
1 Beseech the Mirror (WOE) 82
1 Insatiable Avarice (OTJ) 91
1 Give In to Violence (DSK) 101
1 Liliana, Dreadhorde General (FDN) 176
1 Liliana of the Veil (DMU) 97
1 Final Parting (DAR) 93
1 Realmbreaker, the Invasion Tree (MOM) 263
1 Vicious Offering (DAR) 110
1 Skittering Surveyor (DAR) 230
1 Susur Secundi, Void Altar (EOE) 259
1 Aclazotz, Deepest Betrayal (LCI) 88
1 Demolition Field (BRO) 260
1 Escape Tunnel (MKM) 261
1 Fabled Passage (ELD) 244
1 Evolving Wilds (WOE) 256
1 Soulstone Sanctuary (FDN) 133
1 Terramorphic Expanse (DSK) 269
1 Three Tree City (BLB) 260
1 Volatile Fault (LCI) 286
1 Unholy Annex // Ritual Chamber (DSK) 118
1 Call of the Ring (LTR) 79
1 Bandit's Talent (BLB) 83
1 Braids's Frightful Return (DMU) 85
1 Eternal Thirst (ANB) 49
1 Battle-Rage Blessing (DMU) 80
1 Relic of Legends (DMU) 236
1 Essence Infusion (STX) 69
1 Grasping Shadows (LCI) 108