Untap your mana dorks again and again, then dump all that floating green into one enormous Omnath.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 864 cards that fit

#1,659$3.46Scott M. Fischer

#5,839$2.70Aleksi Briclot

#9,576$4.55Jae Lee

#21,096$5.33Victor Adame Minguez

#6,802$3.79Wesley Burt

#2,472$16.85BODAX

#966$1.16Darrell Riche

#3,303$19.58

#285$15.44Adam Rex

#543$38.37Chris Rahn

#885$12.71Howard Lyon

#150$88.40Christine Choi

#1,666$5.40Steve Prescott

#4,932$2.95Terese Nielsen

#2,473$1.35Heonhwa

#13,905$0.26Livia Prima

#7,312$0.24

#604$0.41rk post

#1,019$27.95Filip Burburan

#668$36.92

#3,473$0.34Donato Giancola

#20,085$0.26

#5,734$0.36Yeong-Hao Han

#2,373$0.23Jason A. Engle

#6,578$2850.00Douglas Shuler

#13,222$0.21Michele Giorgi

#6,591$7.96Tyler Jacobson

#5,889$0.22David Gaillet

#2,646$2.18Ryota Murayama

#1,753$4.82Karl Kopinski

#13,305$0.34Justin Sweet

#25,833$0.31Wayne Reynolds

#5,461$0.78

#1,956$1.48Néstor Ossandón Leal

#8,756$0.41

#3,790$0.15Cristi Balanescu

#3,924$0.31Zara Alfonso

#7,276$0.40Josiah "Jo" Cameron

#442$302.69Filip Burburan

#1,778$0.22Winona Nelson