You get a chance to add transforming sagas that represent powerful past Avatars, and with all the clues, earthbent lands, and unblockable little spirits running around, you'd think a 100-year war might come to a conclusion
Honestly, just being a five-color, two-mana pseudo-Amulet of Vigor in the command zone is probably enough for Wandering Minstrel to see heavy play
They often run a wide density of creatures with powerful enter-the-battlefield abilities, like Archaeomancer and Ravenous Chupacabra, to take advantage of Aminatou's flicker ability
Invasion of Ixalan, Invasion of Zendikar, and Invasion of Ulgrotha are good budget candidates
Remember that these sleeves hold standard-sized cards, so theyre suited to casual players, professionals, and enthusiasts