The wording of this makes this a bit odd, but this is a BUG

I was able to play this deck earlier today, but I came back, and the deck is showing as 'invalid'. The helper text says 'Invalid cards: 0';. Not sure what is happening here. I have played since the beta, and have never ran into this. Here is the deck list:

1 Baylen, the Haymaker (BLB) 205

Deck
8 Forest (UND) 96
9 Mountain (UND) 94
10 Plains (UND) 88
1 Zacama, Primal Calamity (RIX) 174
1 Cleansing Wildfire (ZNR) 137
1 Goblin Ruinblaster (ZEN) 127
1 Rubble Reading (RNA) 110
1 Fire of Orthanc (LTR) 127
1 Demolish (WAR) 123
1 Stone Rain (STA) 45
1 Seismic Shift (DAR) 141
1 Smashing Success (KHM) 151
1 Tectonic Rift (M20) 161
1 Star of Extinction (XLN) 161
1 Memorial to War (DAR) 246
1 Dire-Strain Rampage (MID) 219
1 Boseiju, Who Endures (NEO) 266
1 Silverback Elder (DMU) 177
1 Acidic ***** (M12) 161
1 Ravager Wurm (RNA) 200
1 Fall of the Thran (DAR) 18
1 Urza's Sylex (BRO) 40
1 Elesh Norn (MOM) 12
1 Lotus Field (M20) 249
1 Gilded Lotus (BRR) 17
1 Cleansing Nova (M19) 9
1 Doomskar (KHM) 9
1 Wrath of God (AKR) 46
1 End Hostilities (KTK) 8
1 Expel the Interlopers (WOE) 13
1 Fumigate (KLR) 19
1 Realm-Cloaked Giant (ELD) 26
1 Smothering Tithe (WOT) 13
1 Esper Sentinel (MH2) 12
1 Authority of the Consuls (KLR) 9
1 Thalia, Heretic Cathar (SIR) 49
1 The Wandering Emperor (NEO) 42
1 Koth, Fire of Resistance (ONE) 138
1 Chandra, Awakened Inferno (M20) 127
1 Nissa, Ascended Animist (ONE) 175
1 Ugin, the Ineffable (WAR) 2
1 Elspeth, Sun's Champion (PIO) 321
1 Mondrak, Glory Dominus (ONE) 23
1 Mite Overseer (ONE) 404
1 Myrel, Shield of Argive (BRO) 18
1 Krenko, Tin Street Kingpin (WAR) 137
1 Atsushi, the Blazing Sky (NEO) 134
1 Tibalt, Wicked Tormentor (Y22) 43
1 Anim Pakal, Thousandth Moon (LCI) 223
1 Heroic Reinforcements (FDN) 241
1 Trostani Discordant (GRN) 208
1 Jinnie Fay, Jetmir's Second (SNC) 195
1 A-Cabaretti Charm (SNC) 173
1 Mana Geode (WAR) 241
1 Arcane Signet (ELD) 331
1 Delighted Halfling (LTR) 158
1 Birds of Paradise (BLC) 81
1 Ilysian Caryatid (ANB) 98
1 Paradise Druid (WAR) 171
1 Vorinclex, Voice of Hunger (NPH) 127
1 Coldsteel Heart (CSP) 136
1 Ornithopter of Paradise (MH2) 232
1 Chromatic Lantern (GRN) 233
1 Relic of Legends (DMU) 236
1 Dust Bowl (OTP) 65
1 Field of Ruin (MID) 262
1 Ghost Quarter (ISD) 240
1 Stomping Ground (RNA) 259
1 Rootbound Crag (XLN) 256
1 Sacred Foundry (GRN) 254
1 Clifftop Retreat (DAR) 239
1 Temple Garden (GRN) 258
1 Jetmir's Garden (SNC) 250
1 Sunpetal Grove (XLN) 257