A strange lightning shaped blade covered in runes washed down a river in one of leaps. A lynx saw it and thought he could sell it for some gold. When he picked it up though, they smiled wickedly.
"How long hasss it been since I had a body?" The creature rhetorically asked. "Doesssn't matter to much."
The lynx waved their paw summoning their runes and a mask and cloak appeared on their body. The blade also floated above their back.
They looked up to the stars. "You think your ssso clever splitting me in half. Thought you could limit my powersss. Thought you could keep reincarnating my family and keep them away from me! You even wear MY PHILOSOPHERSss STONE! Humanity will rissse again old friend, and there isss nothing you can do to stop me!" They cackled and laughed to no one, to everyone.
They then walked off continue millennia old scheming in what was just another vessel to them.