While this sounds good, there is one thing holding it back and that is the lack of reprints for Imsety, Glory of Horus
While Fairy-type cards remain in the card game, as of the Sword & Shield expansion in 2020 they are now counted as part of the Psychic type, rather than a separate type on their own
Finally, Felidar Sovereign is a staple of life gain decks, offering an easily attainable alternate win condition for when combat just wont cut it
You can also add Ninjitsu Art of Super-Transformation to summon White Dragon Ninja, and use Safe Zone as well to complete the lockdown, and avoid getting your monsters destroyed by battle at all, and render your opponent's traps and spells useless
So, really, you're always aiming to have a Snorlax on the field with 200 HP
Always focus on recently sold listings to get the most accurate picture of a cards current worth