http://imgur.com/tII1rSs,cTRd8rr,OkfGREc,WAH8PPl
(sorry for the bad quality)

It does not look permanent, but how can I remedy this?
I currently have them both in card skins, and one toploader together with a few books on top of them.

I received them this way through a trade. It is not his fault, but I want to get this... straightened out...

The easiest way to straighten it out is to stick it in a box with a lot of other cards (without sleeves on) and jam them in tightly. It should be fixed within a week.

I don't want to put my Goyf and Verdant Catacombs in a box unsleeved. I put them inside a book with others stacked on it