I’m smashing people with Maestro Pls.
Maestro Pls mainboard can be seen below as a screenshot from MTG Arena:

Maestro Pls sideboard can be seen below as a screenshot from MTG Arena:

Maestro Pls decklist can be seen below as a text export from MTG Arena:
Deck
1 Ashling’s Command (ECL) 205
4 Break Out (MKM) 190
4 Molten-Core Maestro (SOS) 125
4 Starting Town (FIN) 289
1 Sorceress’s Schemes (FIN) 159
1 Doc Aurlock, Grizzled Genius (OTJ) 201
2 Spirebluff Canal (KLR) 286
1 Lively Dirge (OTJ) 93
1 Bloom Tender (ECL) 166
4 Practiced Offense (SOS) 25
2 Stomping Ground (RNA) 259
1 Ashling, Rekindled (ECL) 124
4 Cynical Loner (DSK) 89
4 Multiversal Passage (OM1) 181
1 Winternight Stories (TDM) 67
2 Hardened Academic (SOS) 194
1 Wild Ride (TDM) 132
1 Esper Origins (FIN) 185
1 Songcrafter Mage (TDM) 225
2 Desecrex, Gift of Servitude (OM1) 133
4 Blooming Marsh (OTJ) 266
1 Molt Tender (DFT) 171
4 Gene Pollinator (EOE) 186
1 Springleaf Drum (ECL) 260
3 Springleaf Drum (BRR) 55
4 Gran-Gran (TLA) 54
1 Uharis, the Stormspinner (OM1) 157
Sideboard
1 Insatiable Avarice (OTJ) 91
1 Three Steps Ahead (OTJ) 75
1 Tablet of Discovery (SOS) 132
1 Arcane Omens (SOS) 73
1 Vazin, Two-Faced Trickster (OM1) 46
1 Foggy Swamp Visions (TLA) 102
1 Nibelheim Aflame (FIN) 146
1 Leonardo’s Technique (TMT) 18
1 Self-Reflection (FDN) 163
1 Ruthless Negotiation (BLB) 108
1 Channeled Dragonfire (TDM) 102
1 Nature’s Rhythm (TDM) 150
1 Detect Intrusion (OM1) 28
1 Sorceress’s Schemes (FIN) 159
1 Burst Lightning (SOA) 41
Mike Long on his 100% win rate in brief testing with Maestro Pls:

Mike Long “I really enjoyed playing this aggressive version – I think I only had wins in brief testing”
Practiced Offense in Maestro Pls
This card (Practiced Offense) is preposterous:

Michael Freeman on Practiced Offense:

Michael Freeman “Yea I’m big on this card”
Adam Weinstein on Practiced Offense:

Adam Weinstein “It’s pretty gross”