United States1h27m with the following Grixis Bat heist deck:
Deck
4 Deep-Cavern Bat (LCI) 102
5 Swamp (UNF) 237
4 Swamp (ONE) 264
1 Plundering Pirate (LCI) 160
8 Swamp (UNF) 242
5 Swamp (MOM) 287
5 Swamp (UND) 92
1 Bitter Triumph (LCI) 91
6 Mountain (UNF) 238
3 Island (UNF) 236
3 Island (UNF) 241
1 Surge Engine (BRO) 81
6 Mountain (UNF) 243
1 Experimental Augury (ONE) 49
2 Urabrask (MOM) 169
1 Phyrexian Arena (ONE) 104
1 Spell Stutter (WOE) 69
1 Lightning Strike (M19) 152
1 Ratcatcher Trainee (WOE) 144
1 Burn Down the House (MID) 131
NOTE: Technically, I almost managed to solo a guy with a Surge Engine @ about 27m, but they scooped on me just as I was about to attack them. I guess he knew what I was up to.
All star of this deck: surge engine, hands down!
Really fun idea for a format!