Unfortunately, Cavalier's low toughness makes it a bit of a liability as even the cheapest removal spells like Shock can easily remove it
This happens at the end of each four-week round
But wait, theres more
One of the keys to doing that is creating spells to fill roles usually filled by noncreature spells, things like creature removal and card draw
We pick up Dack Fayden (RIP), Saheeli, Sublime Artificer (THIS CARD IS BANANAS), Saheeli, the Gifted, Saheeli Rai, Daretti, Ingenious Iconoclast, Daretti, Scrap Savant, and pair that up with blue/black artifact planeswalkers like Tezzeret, Artifice Master and holy moly Tezzeret, Master of the Bridge
Zazu Steward of the Pride Lands Airfoil Item Airfoil adds another draw support item to Emerald