im starting a new clan and I want to show their usercards in the desc

so can you guys tell me how I can get the link to my own/other people usercards?

Click on the 'Achievements' link under people's post count.

or to see your own, you could also just go to shop and there you see your own usercard

I went to the support irc channel and they helped me

haha, well, that's an option to ;), well, annyways, good luck with your new clan!