(Is this deck going to be competitive or casual?) In a casual deck you might put less powerful cards, and maybe add no instant-win combo's
This card is very special, not only because its Mew but because it features an incredible design that when tilted in the right direction will make the sun look like its rising and setting
Then from there you can turn to other online resources to help out
Apes of Rath is more of a fun joke than a playable card
For most modern cards, a PSA 9 sells for roughly the same as a raw near mint copy once you factor in fees, which is why the community generally treats PSA 10 or bust as the only submission that makes financial sense
Its still a deck I find myself returning to because its remarkably easy to play, and while Atarka, World Render is hardly a pricey Commander, there are still some slightly pricier cards to be found, like Scourge of Valkas and Dragon Tempest