Where prices really spike is when cards appeal to both groups, with a card like Sheoldred, The Apocalypse a prime example being a major player in multiple competitive formats, and a favourite in Commander
Custom physical card print: a high-quality, physical card with an authentic Pokmon card back, delivered in a protective sleeve for maximum durability
It also allows for "Blue-Eyes White Dragon" to get into your hand easily, as it can add it if it goes to the Graveyard by any means
The holo slot rates from PokPatchs 114-pack sample: Holo Rare 57.02% (~11/box), V 21.93% (~4/box), VSTAR 10.53% (~2/box), Radiant 5.26% (~1/box), V Full Art SR 1.75% (~0.35/box), Trainer SR 1.75% (~0.35/box), HR/UR/CSR combined 1.75% (~0.35/box)
Instead, I'd suggest using those 4 slots for 2x more lands to improve the stability of the mana base and 2x draw card spells to keep the deck from stalling out
Keldeo will hopefully never be used to attack, so you dont have to worry about its attack, Secret Sword