Load the Tarrasque with gear and protection so the untouchable monster ends the game on commander damage.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 302 cards that fit

#4,993$3.32Mark Zug

#2,947$2.84Peter Laird

#7,964$0.32Scott Murphy

#1,337$19.06Volkan Baǵa

#2,716$9.36Chris Rahn

#4,347$19.73Chris Rahn

#885$12.71Luke Pearson

#1,672$9.32Vincent Proce

#2,247$8.49Borja Pindado

#727$5.00Tyler Walpole

#543$38.37Chris Rahn

#4,870$4.69

#903$17.34Chris Rahn

#476$41.66Volkan Baǵa

#1,693$31.94Nils Hamm

#1,882$9.82Scott Murphy

#4,204$3.01Chris Rahn

#6,382$0.33

#9,289$0.36

#14,849$0.80Jason Chan

#742$1.10Alan Pollack

#353$2.66Chris Rahn

#973$1.21Jeremy Jarvis

#2,548$0.26Eelis Kyttanen

#331$2.07Daren Bader

#309$20.09David Petersen

#2,753$1.02Uros Sljivic

#12$1.58Manuel Castañón

#7,911$0.26

#13$3.61Jeremy Jarvis

#9,724$2.97Javier Charro

#10,047$4.70Boneface

#11,917$1.10

#2,228$20.99

#1,584$2.00Pavel Kolomeyets

#915$4.63Daniel Ljunggren

#10,997$0.18

#4,491$5.34

#870$51.59

#3,227$2.32