The Raccoon Bard turns Artifacts that arent Equipment and Enchantments that arent Auras into 4/4 creatures with Indestructible and Haste
If they choose to use three creatures, that's three blockers that are taken care of to allow your other creatures to get in for damage
Yes, it ended up being about Urza, a famous artificer, and for story reasons, the block was referred to as "The Artifact Cycle," but if you actually look at the cards, there's a strong enchantment theme
You've also got a few sources of life gain (see Mask of Griselbrand, Basilisk Collar, and Blood Artist), and a few ways to wipe the board if things get out of hand (see Decree of Pain and Blasphemous Act)
Acts like a server basically
If you just want to learn how to play, the Starter kit is an excellent collection of two decks, a guide on how to play Magic, and even codes to redeem both decks on MTG Arena