Start with Koraidon in the active and Greninja on the bench.
Discard energies with Concealed Cards and Earthen Vessels.
Have a Raging Bolt on the bench and start using Sada to atttach energies from the discard while draing cards.
Start chipping away at health with Koraidon and use Counter Catcher as you're usuallly one prize card behind.
Once you're down two Pokemon, bring on Sandy Shocks to boost Bellowing Thunder.
In one turn, you can easily attach 4 energies in one turn with Sada and Sandy Shocks (5 if you've set up two Sandy Shocks').
Deck works well agaisnt one prizer decks because of Koraidon and can also hit big with discarding 5 energies using Bellowing Thunder (350HP).
Pretty fun to play and has done well in locals.
I think it may benefit from a Lost Vaccum while taking out a Pickaxe. Open to suggestions!