all crystal pokemon cards - Sparkling 142/142 Stellar Crown – ACE SPEC While in play Crystal Pokémon (TCG) - Bulbapedia,

The static ability to give both your creatures and your planeswalkers affinity for artifacts is really powerful, especially if you're playing a bunch of durdley artifacts, like the aforementioned Ichor Wellspring

Thus, there are no valid reasons at all to have this Alph Lithograph card in any deck

Rikku is more direct

Pull rate from Rare Packs: 1.96% The estimated pull rate for Mega Camerupt ex (Pulsing Aura) from a Rare Pack is approximately 1.96%, meaning you might need to open around 52 Rare Packs to obtain it

Keeper of the Accord can absolutely do this on the condition it survives to see at least 1-2 opposing end steps