I’m sure many of us are a bit annoyed at the fact MOST X overs aren’t competitively consistent, as most of them are paper weights compared to the top meta blades, so could a weight class limit ever be introduced? I believe there’s enough available blades to make this possible 
This is a list based off memory for the selection Possible 

Blades under 34.5 grams atm
Wizard arrow 
Hellscythe 
Hellschain
Unicorn sting 
Shark edge 
Sphinx cowl
Wyvern Gale 
Leon claw
Rhino Horn
Black shell 
Shinobi shadow 
Hells hammer 
Ghost circle 
Shelter Drake
Knight Lance
Golem Rock
Dragoon
Draciel
Dranzer
Driger 
Pegasus 
L Drago
Valkyrie 
Xcalibur

It kinda works, but you'll have some outliers.

Leoncrest is fine and good (cuz it's bad) for this style of format since it's a defense type that wants the weight advantage (not like all defense types don't, it's just more LCr relies on it) drandagger is 35 as well, and thats also fine.

Shark isn't tho, it may be 34.5, but it still destroys everything, even things that are meta. It's light, but still too strong.

Golem is another one that may be a bit too good, tho I'll have to test it against the stamina types to see if it is too good.

Other than that, it do be kinda workin out!