With class blades on top of balance blades on top of class traps on top of hex on top of feint on top of gargantuan card enhancements on top of base damage-boosting from gear stats, and sometimes on top of a mob's weakness to a particular school of magic.
(and then double the end result if you get a critical, heh.)
With alot of math. They plan, and use a high level spell, with all the traps and blades they can get in the game, then they use all the treasure card versions, then they hope it doesn't fizzle...
