Alastor
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[edit] Aria of Sorrow
Alastor is a ghost that possesses a sword like that of a Great Armor.It might be a counterpart of the Nemesis(wielding a Rapier),since both are ghosts and attack by their weapons.
[edit] Castlevania: Portrait of Ruin
Alastor is a ghost that is possesing a large sword, that of a Great Armor. If you attack the sword, you see a red outline of a large humanoid, in a flinching pose.
In Aria of Sorrow and Dawn of Sorrow, the Alastor Soul allows you to control the Alastor as a Familiar, which is similiar to the Sword Familiar found in Symphony of the Night.

