Yeah - so the "plain" cards (white, bronze, silver, gold) without any card value on them... and then some "containers" / borders to allow you to put together a card or card template for things like characters, weapons, modifiers, etc. Would combine well with, say, the sword or shield pack (and even the character ones) to let you make cards for a knight with a +1 defense shield and a +2 melee sword wearing a ring of stealth... that kind of thing?
I really like the style you have on these assets, you've done great work here!