Loot, connive and scheme every turn, turning discarded cards into steadily growing +1/+1 counters.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 764 cards that fit

#14,218$0.27Michele Giorgi

#425$5.55Daniel Ljunggren

#6,580$0.13

#13,150$0.24James Ryman

#1,522$0.30Adam Paquette

#3,098$1.80Kevin Glint

#4,083$0.39Winona Nelson

#24,485$0.23

#3,696$2.39Carl Critchlow

#11,146$0.33Pete Venters

#11,154$0.38

#1,533$0.97Mike Bierek

#7,167$4.57Todd Lockwood

#4,009$0.38Svetlin Velinov

#11,989$15.77Simon Dominic

#11,622$1.37Tuan Duong Chu

#10,202$2.83Randy Vargas

#11,352$0.17Konstantin Porubov

#5,497$4.44

#14,714$0.23Simon Dominic

#1,693$31.94Chris Rahn

#29,252$0.35Cristi Balanescu

#10,982$0.28Seb McKinnon

#3,548$0.30Tommy Arnold

#258$46.17Maxim Kostin

#9,803$1.22Campbell White

#8,183$4.34Simon Dominic

#834$23.21Mark Winters

#805$0.35Chris Rahn

#6,931$0.25G-host Lee

#15,355$0.22Javier Charro

#5,807$0.52Warren Mahy

#4,908$1.57Alex Konstad

#8,865$0.09

#2,585$13.83Jeff Miracola

#1,512$0.33Mark Poole

#1,952$2.27

#3,341$1.63

#6,423$0.24

#12,926$0.12Lucas Graciano