Un-curse the Demon Seal:

The Demon Seal has always been a double-edged
blade in the Tales series- Always offering 
double exp. points, but always with a catch. 
While usually this meant disabling your 
special attacks and bringing your defense down
to 0, this time around the programmers decided
on something different- You get double exp., 
but it throws random status ailments on you. 
This could be crippling, but if you equip the 
Krona Symbol (which prevents all status 
abnormalities), you're COMPLETELY immune to the
Demon Seal's curse, and free to reap your 
doubled exp. rewards! I won't tell you WHERE to
get the Demon Seal or Krona Symbol; there should
be at least some challenge left. But I will say 
that you can't get the Demon Seal until VERY 
near the end of the game...


by unknown