card saver sleeves 4 Pocket Protector - Holds 3.5" x 2.5" Cards/Photos - 20 Pack but they are also archival safe CardPreserver™ Protective Holders – Ultra

Blue Blue is a pretty incredible color in Commander, mostly on the back of its card advantage effects and its ability to handle problematic permanents by copying or stealing them

Wyll, Blade of Frontiers

Infinitrack Trencher X EARTH Level 5 [ Machine / Effect ] ATK 500 DEF 2400 You can Tribute 1 EARTH Machine monster

Loxi: I like this as a hatebear specifically if you have that sort of deck, but in a control shell I think I'd generally reach for some other options

Can I search for Valki, God of Lies and put it onto the battlefield as Tibalt, Cosmic Impostor

But if you want some more Commander shenanigans, Narfi's second ability is the way to go