For this, side-loading inner sleeves are ideal
Transmute Artifact can effectively trade up any artifact, even a token, for literally anything else in your deck, making it a widely sought-after card for any artifact deck looking to splurge a bit
Combustible Gearhulk can help you out in a number of ways, depending on your situation: they can draw you cards, provide you with more reanimation targets, and even deal some hefty damage against an opponent if they dont give you the card draw
The deck has plenty of enchantments that double as creatures like Jukai Naturalist, which reduces the cost of enchantments by 1, and Spirited Companion, which draws a card when entering the battlefield
You must choose two appropriate cards if able