Decks I would recommend Penny to be played in: any deck that plays Basic Pokemon Thorton For similar reasons as Penny, Thorton can act as answers to lock situations, like Mawile, by switching your Active Pokemon with a Pokemon in your Discard Pile
Since Timestream puts itself on the bottom of your library, River Song lets you consistently draw and play it again
Back in the early days of Magic, the owner of a Black Lotus had no reason to trust Wizards of the Coast not to reprint the card once their business took a downturn
Scry 1s not a throwaway either
You'll need the basic Pokmon in play before you can evolve it into Vaporeon
Windstorm Similar to Earthquake in the sense that you can spend X mana to deal X damage to each creature, but in Windstorms case, it's only against flying ones and you miss out on dealing the extra damage to players