Ink-Eyes

Ink-Eyes/Sumime is a legendary ninja rat, the most feared ninja on Kamigawa. She was ostracized from her clan at and abandoned in a swamp. An ogre named Muzan found her and took her as his disciple, where she endured many years of harsh training. When she believed herself ready, she killed her ogre mentor in his sleep and offered his blood to a demon overlord: Kuro, the Pitlord. She uses her necromancer powers to increase her master's army. Big "I can fix her" energy.