It is likely to rely on one of your opponents having worthwhile creatures to copy in their graveyard, but the removal available in black will help you to put the right ones in the right place
When City of Ass was printed, mana burn was still a thing (unspent mana would deal damage to you), so the extra half mana would harm you and in a way work like City of Brasss ping when tapped
Guardian Sphinx could be pretty useful as well and there's a Spring of Rebirth to go with him if you need health, but only one of each in deck so it's not always there when needed
Though its origins remain a bit of a mystery, this promo card is slightly longer in size than the normal Pokmon cards, and the print is also closer in size to what is used on traditional Japanese phone cards
While most printings of this cake-eating electric mouse cost upwards of $50, often climbing into hundreds, there was (until recently) an affordable way to get a copy