I'm much more likely to be willing to trade up than to trade down. Any singles on my list that is less than $5 I'll only take as filler. I'm willing to take foil or full art lands to help pad trade values. Typically I'm going to want to compare values to tcg, since deckbox has really wonky values on some cards.

Also haves:
I do have a complete M12 set for the right price.