Fill the deck with turtles, ninjas, and mutants, and let the whole sewer crew grow together.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 44 cards that fit

#8,904$0.27Narendra Bintara Adi

#8,323$2.75Kirokaze

#10,631$2.67Narendra Bintara Adi

#15,361$0.50Lie Setiawan

#14,962$0.33Howard Lyon

#8,934$0.32Andrey Kuzinskiy

#8,970$0.35Andrea Piparo

#8,860$0.41Nicholas Gregory

#23,647$0.28Junggeun Yoon

#2,965$11.22Christina Kraus

#10,054$0.29Kirokaze

#7,023$0.60Villarrte

#13,545$3.75April Prime

#16,487$3.29Ryan Pancoast

#6,225$2.22Ignatius Budi

#6,191$0.35Jason Rainville

#21,332$1.46Tran Nguyen

#18,433$0.12

#26,911$0.23Nathaniel Himawan

#5,720$0.80Sidharth Chaturvedi

#6,329$1.57Evan Shipard

#25,419$0.28Craig Elliott

#13,312$1.05Lie Setiawan

#24,218$0.34Lars Grant-West

#15,099$0.37Jakob Eirich

#24,768$0.31Lucio Parrillo

#25,804$0.25Ryan Pancoast

#6,048$0.20Oriana Menendez

#15,289$0.27David Astruga

#5,615$0.48Jim Cheung & Jay David Ramos

#9,120$0.37Carlos Palma Cruchaga

#26,091$0.19Villarrte

#935$0.32Nereida

#5,838$4.89

#19,301$0.15Filipe Pagliuso

#10,051$0.08Matt Cavotta

#5,716$0.23Marina Ortega Lorente

#4,584$1.95Liiga Smilshkalne

#9,786$0.14Jehan Choo

#23,018$0.14Jakob Eirich