While this creature can be tapped for five mana to return an enchantment from its controller's graveyard to the battlefield, it synergizes in an impressive fashion with other Shrines
Special Guests appear in both Foundations Play Boosters and Collector Boosters

Decklist: Allied Creatures in Pioneer Adeline, Resplendent Cathar | Illustration by Bryan Sola Creatures (25) Anim Pakal, Thousandth Moon x2 Gala Greeters x4 Devilish Valet x3 Rumor Gatherer x2 Adeline, Resplendent Cathar x3 Mondrak, Glory Dominus x3 Resolute Reinforcements x3 Jinnie Fay, Jetmir's Second x3 Jetmir, Nexus of Revels x2 Instants (5) Cabaretti Charm x2 Play with Fire x2 Destroy Evil Enchantments (6) Rabble Rousing x2 Fable of the Mirror-Breaker x2 Windcrag Siege x2 Lands (24) Plains x5 Forest x3 Mountain x3 Boseiju, Who Endures x2 Eiganjo, Seat of the Empire x2 Sokenzan, Crucible of Defiance x2 Jetmir's Garden x3 Battlefield Forge Brushland Karplusan Forest Arch of Orazca Sideboard (15) Destroy Evil Lantern Flare x2 Rite of Harmony x2 Tamiyo's Safekeeping x2 Gleeful Demolition x2 Incandescent Aria Rabble Rousing Fable of the Mirror-Breaker Wedding Announcement x3 I took a stab at making a deck for alliance, which fits Pioneer legality

They arent necessary but some players prefer them
If buying Id give that Magneton a tiny chance on a 9 but 8 would be more realistic, so I can agree on that one
Getting a bunch of extra combat and extra power is great for decks winning through combat