Sleeves of Protection: Slide those beauties into archival-quality card sleeves
After getting those four I decided I wanted to see if I could get a bunch of cards at once
With some careful deck building (mostly playing some big card-draw spells you can cycle into with Unpredictable Cyclone to make sure you always have some cycling cards in hand), you should be able to mostly play your entire deck in a single turn by cycling, casting stuff (including card-draw spells) for free with Unpredictable Cyclone, drawing into more cycling cards, and cycling them to trigger Unpredictable Cyclone against and again until you've essentially cast your entire deck
Lets be honest here - Machamp V is only on this list because of how good the alternate card art is
Jet Medallion, Bolass Citadel, draw spells, tutors, and black cards that lack colorless requirements in their mana costs tend to work best with Krrik, as they help you stretch your mana and card access into ridiculously explosive turns that can win you the game on the spot if your opponents dont have access to any interaction
Drop of Honey, which forces the destruction of the weakest creature each turn, has seen its graded 10 value climb to $3,045