Superior sigil mastery on a feoh gives 5% m.atk (covers a bit of the gap) and 20% mp recovery bonus. I'm unsure if just aeore healer gets +2 int, but feoh may get +2 int with a sigil as well.
Requiem retributer is 270 m.atk, requiem buster is 245 m.atk. Adding in the 5% m.atk from sigil mastery, 245 becomes 257. 2 int would probably put the damage of a 1h magic sword + sigil over a staff. Then comes the 20% bonus mp recovery. 1h gets m.accuracy/m.crit, which are grand, 2h gets p.atk (lol)/m.crit/cast speed. Probably not much cast speed though.
So probably sigil, even though you need two items rather than one.
Superior sigil mastery on a feoh gives 5% m.atk (covers a bit of the gap) and 20% mp recovery bonus. I'm unsure if just aeore healer gets +2 int, but feoh may get +2 int with a sigil as well.
Requiem retributer is 270 m.atk, requiem buster is 245 m.atk. Adding in the 5% m.atk from sigil mastery, 245 becomes 257. 2 int would probably put the damage of a 1h magic sword + sigil over a staff. Then comes the 20% bonus mp recovery. 1h gets m.accuracy/m.crit, which are grand, 2h gets p.atk (lol)/m.crit/cast speed. Probably not much cast speed though.
So probably sigil, even though you need two items rather than one.
only if you enchant to +4, else you wont get anything. dual swords gives p.critical at +4, a huge amount of 17 p.critical, if thats the case for magic swords too, doesnt worth going +4 on magic swords