While Arcanas are ultimately a mater of personal interpretation, I find that Kirby perfectly encapsulates The Fool Arcana.

The Fool represents several ideas such as innocents, divine inspiration, freedom, and the 'metaphorical' start of a journey which seems pretty on point with Kirby's role the in World of Light.

"In order to be able to pull off such an impossible heist, you must have had help from a cosmic demon. Maybe with the ability to copy other people's powers. Spill It!"