Sacrifice expendable fodder for drain, stocking the graveyard with creatures for Siegfried and friends.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 592 cards that fit

#7,167$4.57Todd Lockwood

#29,252$0.35Cristi Balanescu

#3,058$2.26Tiffany Turrill

#5,948$0.30Craig J Spearing

#2,732$6.30Marko Manev

#1,257$28.93Wisnu Tan

#2,018$0.15

#14,819$0.59Jason Pastrana

#794$8.07Chris Rallis

#4,305$0.33Tyler Jacobson

#1,024$14.51Kathleen Neeley & AndWorld Design

#580$19.27Tony Szczudlo

#1,392$0.59Zack Stella

#11,146$0.33Pete Venters

#1,051$0.23Frank Frazetta

#3,548$0.30Tommy Arnold

#3,599$0.79Slawomir Maniak

#10,311$0.27Maciej Kuciara

#3,220$0.32Dave Kendall

#141$2.61Johannes Voss

#1,142$2.37Seb McKinnon

#14,714$0.23Simon Dominic

#260$0.99Anna Steinbauer

#13,206$22.08

#4,338$6.43Scott Chou

#3,696$2.39Chase Stone

#6,931$0.25G-host Lee

#1,033$0.32

#1,314$21.42Benjamin Ee

#16,768$0.14Eric Deschamps

#513$24.46Chris Seaman

#5,593$8.30

#225$3.76Johan Grenier

#6,503$0.36

#1,371$0.32Jason Chan

#1,761$0.33Jarel Threat

#5,471$0.34Elizabeth Peiró

#12,353$0.29

#1,992$0.31

#1,874$7.23Thomas M. Baxa