In Greek mythology, it wasn't the weapon, but the person who was important. Not just anyone could slay a chthonic monster. You had to be special, and generally that meant divine parentage of some kind.
the greek name for sword is "xifos"
Sword of Awesomeness Code: 9mt4gmc4nm4y
The "fourth sword" is actually an upgrade to the Master Sword, which is the third and final sword you obtain. The upgrade (earned automatically in the Palace of Twilight) allows you to repel the purple fog, kill many twilight monsters with one hit, and light certain sacred orbs.
Flaming Sword of Awesomeness: 9mt4gmc4nm4y
the cod for the flaming sword of awesomeness is 9mt4gmc4nm4y
The sword of Hades did not have a name in Greek myth.
As with the Romans, most greek Hoplites used a short sword called the gladius
The Halloween monsters are:DraculaFrankensteinZombiesSpidersWerewolfMummySkeletonsJigsawJason (guy with chainsaw or big sword or knife)Freddy KruegerGhostsand Witches
Damocles
xiphos
In Greek myth, Hades does not have a sword, and it is surely not named.
Monsters in the god wars dungeon drop them. They're really hard to beat though.