Is there any chance that champion pvp weapons can be made tradeable?
The stitch-then-trade method has been patched out without any notice.

Is there a reason why they are untradable?

I'm sorry but I really don't think it's viable to expect someone to rank all five of their classes to champion right now, the community and pvp in general isn't exactly in a strong state, and trying to pull people for fights at the higher ranks is hard enough for just one character.

etan8 on Jun 3, 2022 wrote:

Unfortunatley, most of the great gear is not tradeable. I do wish they had more stuff that you could trade that was good.

Angus

Every thing is tradable unless it's specifically designed for a certain class. This is the reason for the restrictions to the champion weapons.
I would just choose one class to rank up.

"Unfortunately, most of the great gear is not tradable,"
Actually there is a lot of great gear that is tradable. Except for the Staff of Power, all the boss gear in Moo Tower is tradable. As well as the Great Machine and Crusher's Lair.