search library for artifact card mtg Artificer's Intuition | Fifth Dawn - German Planar Bridge |6| Legendary Artifact.

Having a way to consistently sacrifice the Warden is the key to making it amazing, so it will be strongest in decks with a heavy sacrifice theme like Athreos, God of Passage, Karador, Ghost Chieftain, and Teysa, Orzhov Scion

One of the best things about Lackey is that he eats the spot removal that would otherwise hit Piledriver

Having a card that just lets you sink mana into it to loot is itself a nice thing to have around, and the fact that you can actually eventually get the stuff back that you put on the Bag is nice upside, though it wont come up that often

Having a card that facilitates Kaito, and importantly isnt useless if drawn later, is, therefore, a no-brainer