These cards allow a player to recover cards from the discard pile, draw them, or even look through their decks for specific cards that the Trainer Card allows
"First-Ever Pokemon Trading Card Game World Champion Titles Won by Dylan Austin, 14 of Ann Arbor, Michigan and Mindy Lambkee, 10 of Kent, Washington IndexArticles"
It's a scary Abzan card that can be built as an attrition-style deck, or with flat-out Necrobloom combos in mind
Early Fusion Monsters have very specific materials, while later ones are less restrictive to account for power creep from newer cards
By listening to adventurers recount their exploits and weaving them into verse, he brings forth high-difficulty versions of raids and trials (yes, really), so he should somehow create a permanent that represents a powerful and scary version of an enemy
Most tokens don't have a mana cost (though see below), so a token that ends up in your hand can't be cast unless you find a way to cast it without paying its mana cost