Friends on the Other Side, Let The Storm Rage On, and Strength of a Raging Fire all fit great and can be used in lots of other decks
By farming all available missions, you should be able to accumulate a solid amount of Pack Hourglasses to open an extra 1-3 Booster Packs per day at minimum, or even up to 10+ booster packs, depending on how many missions you still have available at the time
Whoever has the lightest Pokemon wins (such as Tynamo)
Ponder was banned primarily to keep combo decks in check by making them less consistent, but remember: this was back during an era of Magic when Storm was consistently one of the top-performing decks in the meta
Update: Contact with the Televi-Kun Winner On 7th November 2020 a slightly-creased Televi-Kun Spiky-eared Pichu card appeared for sale on Yahoo
The Loyal Three and Pecharunt have all had their personalities portrayed perfectly in Night Wanderer, making for some truly unique cards