Mario & Sonic Guy
Old rivalries live on!
You would have Mewtwo be the same weight as... Luigi?
EDIT: Don't you already have Mewtwo on that scale as 13? Your post has thoroughly confused me.
Apparently, you don't fully understand how my weight scale works...On that scale, I believe Mewtwo's weight is based on his Melee weight, which is 13 according to that scale. M&SG wants his weight to be increased to 20.
As my list shows, there are 26 weight levels, and the fraction that I used pretty much follows that list; 26/26 is heaviest, while 1/26 is lightest. Basically, when I stated 20/26 for Mewtwo's weight, its weight attribute would be at the same level as Wario and R.O.B..Weight Scale
1: King K. Rool
2: Bowser
3-4: Donkey Kong, Emboar
5-7: Samus, Dark Samus, King Dedede
8-9: Ganondorf, Black Shadow
10-11: Samurai Goroh, Ike
12-14: Wario, Mewtwo, R.O.B.
15-17: Link, Captain Falcon, Mega Man
18-20: Ridley, Wolf, Palutena
21-23: Rosalina, Lucario, Zoroark
24-27: Mario, Yoshi, Luigi, Sonic
28-29: Little Mac, Takamaru
30-31: Isaac, Saki
32-33: Pit, Black Mage
34-35: Ness, Lucas
36-38: Bowser Jr., Diddy Kong, Dixie Kong
39-40: Toon Link, Ice Climbers
41-43: Peach, Leon, Marth
44-46: Falco, Servine, Pac-Man
47-48: Zelda, Impa
49-50: Meta Knight, Fox
51-53: Zero Suit Samus, Krystal, Pikachu
54-56: Kirby, Bandanna Waddle Dee, Ray Mk III
57-59: Oshawott, Olimar, Starfy
60: Mr. Game & Watch
61: Jigglypuff
Now, since Brawl Wario's weight attribute is 107, and I depict Mewtwo rivaling Wario's weight, Mewtwo's weight attribute would be 107 as well. But because the character weight attributes are almost always different with each Smash Bros. sequel, I used a fraction system to input weights instead.