Thread:RedReaper83/@comment-4968309-20120427120236/@comment-4962005-20120427144425

Mostly. Sometimes I use an N+ card or a rare that nobody wants, but honestly I don't think it makes a difference at higher levels.

Mr. Mistoffles told me he used rares to level his cards from 15-24, but beyond that it didn't really help much. Doing that he managed to get his S card to grow about 4 levels higher than it should have been. I had two friends with Dias, his was about 23 and another was 28 or so. His level 23 card had higher stats than the level 28 card.