I'm an EDH player looking to expand my collection via variety (I started playing MtG during the Khans block) and thin my tradelist stock a bit.

Admittedly, most of my wishlist is my OCD triggering to complete sets.

I do take great care of my cards and am trying to go through my collection again in order to accurately grade any that aren't in NM condition.

I like two kinds of things with my trades:

1 - The bigger, the better.  If I can trim both my tradelist and wishlist down by a bunch in one trade, I'm happy.  5-10 card swaps are okay, but 50+ cards traded at a whack is more fun, IMHO.

2 - I try to get the final prices on both sides to balance out and try not to worry too much about rarity-for-rarity trades.