Mage Knight Lancer / Marduk *** Obviously included.
True Holy Emperor / Retear ***** Revive on open, auto skill to bring cards back in from the cemetery and since you'll be 9 refess anyway, why not?
Veteran Folrart Paladin ** Super tank Lv5 unit.
If you're just going to put Star Dragon and such as common cards, you might as well put Veteran Folrart Paladin and Retear in as well. Sure, Retear is a great help, but is not necessarily key for the aggressive playstyle, likewise with Veteran Folrart Paladin. Rather, what should really be placed in key are grims such as Unwanted Charity and General's Orders, because removal is a real danger to almost every big file.