I have a Card IX on Sarlona and will trade for a IX or X on Cannith.
If you have a card IX or X on Cannith for trade you can mail it to Undermat with the name of your character on Sarlona.
I'll mail you the card IX in return to your Sarlona character along with spare I-VIII cards if you need them.
If more than one person sends me cards, I'll mail the untraded cards back with an extra card I-VIII to your Sarlona character for your trouble.
I'll check regularly or PM me when you have sent the card.