The card will not fall off, and there is an anti-falling buckle inside to hold the card
And while its in the GY, you can banish it to Fusion Summon 1 Fiendsmith Fusion Monster from your Extra Deck using monsters from your hand or field, which is especially great for accessing Fiendsmiths Lacrima , Fiendsmiths Desirae , or now Fiendsmiths Rex Tremende , which is easier to Fusion Summon post-new banlist
The way this archetype is used can be split into two distinct categories: intended and actual playstyle
This highly elusive and colorful copy of Greninja ex features a Pokemon that can serve as a threat in every game with its two high-damaging moves
You can choose a creature type with very few cards in Magic, such as atogs, rabbits, or raccoons, and fill out the deck with all colors of changeling cards since Morophon, the Boundless is a 5-color commander
Ral Zarek's ultimate being one of the obvious targets for this