I have a few other cards also, I opened a bunch of boosters from Avacyn Restored and I wanted to sell or trade my foil Cavern of Souls. I have proof if you want it.
Looking at around $40 to sell, listed it on eBay
so it's up for sale there if you want to buy it directly from me.
If you want to trade, I'm currently looking for Tamiyo, the Moon Sage, Go for the Throat, Tragic Slip, Blood Artist, or any dual lands.