Persephone: The majestic princess of the underworld uses her slender figure to good use. In any combat where Persephone is fighting alone she
can always retreat - if the opponent chooses the Chase maneuver he will suffer the strength penalties but will not stop a retreat. However,
this will not happen if Hermes is present.
Also, she can retreat to any direction, regardless of the origin of the attacker (as happens when the attacker flies), and even if she is the attacker.
Additionally, if Hades is eliminated, her location is revealed to the Olympian player, and she becomes the Chthonian leader and receives his powers to bring back eliminated units.
But she cannot bring Hades back. Her defeat while faction leader means victory for the Olympians.
As for Hades, if she enter the Olympus the Chthonians win the game. This happens even if Hades is alive.
Persephone's main weakness is her mother, Demeter: if they happen to be in the same region, both leave the game (the two units are eliminated).
If eliminated this way, Persephone cannot be brought back by Hades.