Helper cards are optional, but you should use them or opaque sleeves, if not both
There's also an outlier sale of $954,800 in February 2026 for a 1st Edition Charizard with a "Logan Paul Break" provenance label, but that's a one-of-one collectible due to its provenance, not a comparable for standard PSA 10 sales
Foils should start fairly high and will remain solid long-term holds
Double Strike vs Regenerate Regenerate means that instead of a creature being destroyed, it becomes tapped, all damage is removed from it and it is removed from combat
That being said, I would definitely find room for Lightning Greaves, Swiftfoot Boots, Mother of Runes, Giver of Runes, & an abundance of Counterspells