Samantha Slayer

Samantha Slayer, whose real name is Samantha Rose, is the main antagonist of the movie Samantha: Haven's Worst Nightmare.

She was a member of Salem's Faction and the twin sister of Summer Rose who possessed the power of the Summer Maiden.

RWBY All-Stars 2: Maiden's Heritage
She appears in her Summer Maiden form as a playable DLC character and a boss character of Samantha: Haven's Worst Nightmare DLC chapter in Story Mode.