These won't be the typical decks you see for the selected commanders
Sarcophagus ( Hitsugi ) is a series of cards used by Abidos the Third in the Yu-Gi-Oh
Since you assume your deck is sufficiently randomized, and that you run an average of 24 Pokmon, this means you have around an 8% chance of finding one of your Claydols first than any of your other Pokmon cards
Pillar Analysis: Legendary Power (Combo Enabler), Scarcity (Reserved List), Perfect Condition (PSA 10)
Treacherous Greed Treacherous Greed is only good in token decks, I think, but it turns out that Orzhov is pretty good at that, and those decks also tend to like lifegain and life loss synergies
And the ones in black (and there are less than a dozen) tend to be 6-drops, the adventure side of Topaz Dragon notwithstanding