I just beat he singleton event with this esper pile:
1 Thief of Sanity (GRN) 205
1 Basilica Bell-Haunt (RNA) 156
1 Settle the Wreckage (XLN) 34
1 Smothering Tithe (RNA) 22
1 Teferi, Hero of Dominaria (DAR) GR6
1 Mortify (RNA) 192
1 Thought Erasure (GRN) 206
1 Discovery // Dispersal (GRN) 223
1 Hostage Taker (XLN) 223
1 Chemister's Insight (GRN) 32
1 Psychic Symbiont (M19) 221
1 Seal Away (DAR) 31
1 Conclave Tribunal (GRN) 6
1 Cleansing Nova (M19) 9
1 Lyra Dawnbringer (DAR) 26
1 Opt (DAR) 60
1 Blink of an Eye (DAR) 46
1 Search for Azcanta (XLN) 74
1 Sinister Sabotage (GRN) 54
1 Shimmer of Possibility (RNA) 51
1 Quench (RNA) 48
1 Dawn of Hope (GRN) 8
1 Revitalize (M19) 35
1 Ritual of Rejuvenation (XLN) 32
1 Sanguine Sacrament (XLN) 33
1 Clear the Mind (RNA) 34
1 Thought Collapse (RNA) 57
1 Moment of Craving (RIX) 79
1 Murder (M19) 110
1 Ravenous Chupacabra (RIX) 82
1 Price of Fame (GRN) 83
1 Consecrate // Consume (RNA) 224
1 Duress (M19) 94
1 Treasure Map (XLN) 250
1 Primal Amulet (XLN) 243
1 Azor's Gateway (RIX) 176
4 Plains (RIX) 192
4 Swamp (RIX) 194
2 Island (RIX) 193
1 Memorial to Genius (DAR) 243
1 Godless Shrine (RNA) 248
1 Isolated Chapel (DAR) 241
1 Glacial Fortress (XLN) 255
1 Forsaken Sanctuary (M19) 250
1 Drowned Catacomb (XLN) 253
1 Watery Grave (GRN) 259
1 Submerged Boneyard (M19) 257
1 Hallowed Fountain (RNA) 251
1 Fountain of Renewal (M19) 235
1 Azorius Guildgate (RNA) 243
1 Meandering River (M19) 253
1 Orzhov Guildgate (RNA) 252
1 Dimir Guildgate (GRN) 245
The alt art cards use reused art. Duress uses original art and ghalta is some store championship promo.