The Ace-Specs for Ancient and Future pokemon are a little underwhelming, but the Ancient pokemon work together to make for a decently strong deck that's fun to play with a bunch of single-prize attackers (Koraidon and Roaring Moon)
Energy acceleration is managed with Professor Sada's Vitality, and Dark Patch.
Start the game by hitting with Koraidon, and as the game progresses, Roaring Moon will eventually threaten to hit the 220 HP Breakpoint!
Jet Energy seems like it would fit into the list well.