Whenever he banishes another character in a challenge you can ready him and challenge again
The Overload is legitimately going to get them
They need to be built around to work
Criteria: Cards which allow you to pay energy for an effect that has an effect if it is activated multiple times, that does not result in just more energy (get outta here, Aethertide WhaleAethertide Whale!), and is repeatable in the same turn with a cumulative effect (get outta here, Hightide HermitHightide Hermit!)
This recent round of previews showed off some versions of Tifa, Kain from Final Fantasy IV, Squall, Rinoa, and Angelo from VIII, Zidane (with one version being an alternate for competitive powerhouse Ragavan), and Vivi, and even a couple of versions of Firion from the divisive second entry