(figuratively) to muddy the waters, to cloud the issue, to confuse the issue

(figuratively) to shuffle the cards

(card games) to show one's hand, to show one's cards, to put one's cards on the table / (figuratively) to tip one's hand (to reveal one's intentions)

(figuratively) to play it straight, to play fair (to be upfront, honest; to act in a straightforward, candid manner, without concealing anything)

(figuratively) to hold the cards, to hold all the aces (to be in a strong position, possessing significant advantages over someone else) / (figuratively) to have everything one needs to do something, to deal with a situation, a problem