My favorite sets are Shadowmoor, Eventide, Morningtide, Mirrodin, Dissension and New Phyrexia, so I'm probably somewhat interested in your cards from those sets.
I don't mind downtrading but I'm probably not willing to do something super extreme (like 20 commons/uncommons for my 1 expensive rare).
Whoever has lower feedback sends first, or we can send at the same time.