Ranmaru Shikigami (紫鬼神蘭丸) is a character in the anime and manga series Battle Spirits Burning Soul.
"Rin Hyo Toh Sha Kai Jin Retsu Kai Zen! Nightmare clad in purple! Messenger of night who crawls out of the blackness! I summon The Necromancer Yakumo!"
More Information: http://battle-spirits.wikia.com/wiki/Ranmaru_Shikigami