An illustration of the God-Emperor, with a Lightning Claw on his left hand.
Strictly speaking, that was not a Power Klaw, but a Lightning Claw!
The God-Emperor favored the Lightning Claw. Almost every statue and painting of him that had survived depicted him holding a sword in one hand and wearing a Lightning Claw on the other.
Also, after the God-Emperor took his seat on the Golden Throne, his weapons and armor were distributed among several of his sons in the Loyalist Faction.
The sword went to Guilliman, and the shield to Lion El'Jonson. Since Horus had shattered the True One Armor, it was simply broken into even smaller pieces and handed out as medals to distinguished Terminators.
As for his Lightning Claw, its whereabouts were unknown.
One theory held that the Lightning Claw had gone to Leman Russ, because Leman Russ was one of the Space Wolves, and it was perfectly normal for a wolf to have claws.
Another theory held that the Lightning Claw had gone to Rogal Dorn, the Gene-Primarch of the Imperial Fists, because he had disappeared during a boarding action, leaving only his two hands behind.
Perhaps, during that boarding action, the God-Emperor had given Rogal Dorn some revelation, prompting him to cut off his own hands, replace them with the God-Emperor's more powerful Lightning Claws, and enter the Warp to hunt down certain enemies.
Those were the possible fates of the God-Emperor's Lightning Claw in the established lore.
As for the Lightning Claw on the statue before him now, it was certainly not the one the God-Emperor had personally worn. Its appearance was slightly different.
That was easy enough to understand. The God-Emperor had lived for so long that he must have made plenty of weapons in private.
He had several sets of things