Twice now I have been unable to play decks despite them being legal. First time it was Path to Exile in Historic, not sure what it is now with this decklist so I will post the decklist for the dev team to figure out, I'm not gonna waste my time testing what card is causing the problem

Companion
1 Jegantha, the Wellspring (IKO) 222

Deck
4 Ignoble Hierarch (MH2) 166
2 Rahilda, Wanted Cutthroat (Y22) 42
4 Barrowgoyf (M3C) 102
2 Jarsyl, Dark Age Scion (Y23) 20
4 Pyrogoyf (M3C) 111
4 Fatal Push (FCA) 9
3 Grave Expectations (Y24) 9
3 Abrupt Decay (OTP) 34
4 Thoughtseize (AKR) 127
4 Malevolent Rumble (MH3) 161
2 Grist, the Hunger Tide (MH2) 202
1 Professor Dellian Fel (SOS) 214
1 Forest (SLD) 1386
2 Swamp (SLD) 1384
1 Mountain (SLD) 1385
2 Blood Crypt (RNA) 245
2 Stomping Ground (RNA) 259
2 Overgrown Tomb (GRN) 253
2 Blooming Marsh (KLR) 280
4 Prismatic Vista (SPG) 38
1 Boseiju, Who Endures (NEO) 266
1 Takenuma, Abandoned Mire (NEO) 278
1 Arena of Glory (MH3) 215
3 Starting Town (FIN) 289
1 A-Minsc & Boo, Timeless Heroes (HBG) 243

Sideboard
2 A-Haywire Mite (BRO) 199
2 Duress (STA) 29
1 Meltdown (MH3) 282
2 Surgical Extraction (OTP) 19
3 Damping Sphere (DAR) 213
2 Magus of the Moon (SPG) 0
2 Toxic Deluge (MH3) 277
1 Jegantha, the Wellspring (MUL) 109

Please fix. Quality of MTGA is sliding rapidly. Do better.