They represent a special subset meeting the three criteria: producing mana, having no target, and not being a loyalty ability
He also finds great comfort in the stories his mother has collected around the Multiverse and would like nothing more than to see it for himself one day." Nashi's adoptive mother Tamiyo, meanwhile, "is a pivotal main character in the Neon Dynasty story at assisting in battling the baddies with her scroll magic
Sink all my available mana into Makeshift Munitions
Metallic Rebuke Metallic Rebuke saw endless play during the Urza, Lord High Artificer and Mox Opal times to abuse the early artifact counts of these decks
He reinforced this position by stating that foils would be extremely rare: approximately one common in every 12 packs, one uncommon in every 20, and one rare in every 40
(Good luck finding boxes at MSRP though