Every upkeep Hyde swells a little more, and your counter engines make each dose hit twice as hard.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 817 cards that fit

#7,889$0.35Jaime Jones

#15,584$0.95Yongjae Choi

#1,127$5.77Chris Rahn

#6,382$0.33

#17,677$0.11Winona Nelson

#4,956$2.29Jason Kiantoro

#2,733$0.29Aaron J. Riley

#7,383$0.25

#5,082$0.35Izzy

#1,250$33.86

#7,463$5.99Heonhwa

#5,975$4.48Zoltan Boros

#917$25.23Daniel Zrom

#2,845$25.57Gabor Szikszai

#7,125$8.75InHyuk Lee

#17,678$0.63Aleksi Briclot

#6,580$0.13

#1,225$6.02Maël Ollivier-Henry

#5,180$0.57Colin Boyer

#186$2.03Jim Nelson

#3,139$4.43John Tedrick

#16,179$0.87Julie Bell

#1,582$34.03

#1,628$3.22Chase Stone

#13,150$0.24James Ryman

#14,962$0.33Howard Lyon

#5,237$1.90Raymond Swanland

#14,716$0.32Jeff Miracola

#1,659$3.46Scott M. Fischer

#7,532$0.38

#2,428$1.31Aleksi Briclot

#190$29.50Wayne Reynolds

#2,267$15.90Sam Guay

#17,979$0.05Clint Cearley

#687$9.42Alix Branwyn

#3,993$0.32Kotetsu Kinoshita

#10,930$0.59Karl Kopinski

#2,944$0.79Eric Deschamps

#9,048$0.13

#2,472$16.85BODAX