Banshee Rune

The Banshee Rune (バンシーの紋章, Banshī no Monshō) is a rune which appears in Suikoden II.

Information
This rune allowed the bearer to steal the vitality of their ally in order to restore their own. The name comes from the creature of the same name and similar foes such as the Siren, who scream loudly and steal their target's stamina.

As such, it was not a very popular rune with the bearer's companions.