I collect Yu Darvish, and start out with lower end cards and build up. I usually buy boxes of stuff like tribute which teamboxbreak will break any day now, and trade the higher end stuff for autos and higher end base cards. Just my take, but I am not old enough to have older cards such as 2011 and 2010 stuff to trade, so you may want to try and trade that stuff away.
Busting boxes!!!