Every swing digs into the well for a fresh creature, and your best finds cost less than they should.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 114 cards that fit

#3,966$0.14Lars Grant-West

#6,483$2.78Kev Walker

#5,497$4.44Chase Stone

#4,260$0.39Omar Rayyan

#1,882$9.82Scott Murphy

#1,043$7.63Svetlin Velinov

#2,177$0.35Deruchenko Alexander

#5,678$8.40Johan Grenier

#752$8.08Adam Paquette

#7,532$0.38Suzanne Helmigh

#2,854$46.91Lius Lasahido

#2,036$9.16Zoltan Boros

#6,409$0.36Toni Infante

#5,069$0.78Allen Douglas

#1,889$17.93Toni Infante

#5,021$0.44Jehan Choo

#1,140$0.31Billy Christian

#9,867$0.60L J Koh

#3,846$0.27Daarken

#12,775$0.21Loïc Canavaggia

#14,756$0.24Fajareka Setiawan

#3,930$1.11Magali Villeneuve

#3,550$0.27

#9,375$0.22Kev Walker

#5,028$7.14Cristi Balanescu

#2,784$6.01

#6,447$1.39

#417$3.09Titus Lunter

#16,697$0.21Alix Branwyn

#5,974$2.36

#607$2.01Zack Stella

#2,681$0.38Peter Mohrbacher

#13,158$0.28

#6,209$0.79Helge C. Balzer

#4,388$11.86

#8,397$0.42Nicholas Gregory

#3,674$0.21

#13,781$0.20

#9,992$2.40David Rapoza

#14,156$0.31Tyukina Tatiana