control deck mtg commander Kenrith, the Returned King Five-Color Combo Magic Commande – CommanderComplete New to the game Help with blue/white control deck

Magics designers must have underestimated the power of delve, because when the Khans of Tarkir set released, several of its cards were soon banned from several formats due to being too powerful

Just fire it off and take the right card

You can also track all of them

It does have three copies of Gramma Tala, Keeper of Ancient Stories, a common card that's a staple in Ruby/Sapphire decks

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