In truth, theres a lot of nonsense in Vintage Cube, and once were talking about an environment with Black Lotus and Ancestral Recall its not unreasonable to include these cards, and I wouldnt be surprised to see one or both make it into the Magic Online (MTGO) Vintage Cube
With how many Pokmon are available in the game, it would only make sense for more immersive cards to become available in the near future
Darkrai for the supplemental damage with its ability
With cards, people already know the characters to some extent, and they have personal feelings and attachments from playing the games, so you have to make sure there's no disconnect between the pieces and people's expectations
Each creature you tap counts for one colored mana (based on the color of the card being tapped) or one colorless mana
This is going to find a lot of Scrap Trawlers, and even more Esper Sentinels