So I was going through the playtest, and while you have to wait a few rounds of DBZ-esk charging, you can deal 870 damage in one round late game.
10d6+10+Con. Mod Blast + 10d6+10 (Composite blast) + Double Blast ((Maximize + Empower)x2 + Quicken)
Hell of a long charge time, but incredible amounts of damage.
On that note, does the Double Bast count as 2 separate attacks?