The way I see it, Percy stays behind his shield and blocks most, if not all of Harry's attacks.
If Harry gets close, he get's gutted, and if Percy get's near water, the fight is over...he's essentially Wolverine once he's even touched a source of water. Plus he could just drown Harry if he ever got that close to some H20.
Originally posted by KingD19
Forgot about the part that he has insanely powerful, magically forged items?Whose to say Harry's spells will work on them?
I doubt a sword made by a god is susceptible to a simple disarm spell.