Do card attributes affect attacks from your summon?
If you mean the slotted cards, no, they don’t, except the ones that give SPR stats.
You basically only have to worry about Linkroller for a minion build, and grab something else you may find useful, but note that all of the effects will only affect your char and is completely irrelevant to your summons.
Thanx allot =) Its been eating at me for a while.