Talk:Godou Kusanagi/@comment-75.212.82.46-20130724135912/@comment-5185939-20130929060050

Power would depend on what abilities the author granted him, and the history he drew on.

In the legends, Merlin was a wizard who could see the future (some variants say he lived backwards, with the future being his past.)

There's also a story about a shapeshifting duel he had with a witch, though I'm not sure if that originally came from the Disney movie (Sword in the Stone) or not.

Shapeshifting, Spirit vision of some sort, or possibly being able to rewind time are all abilities he might gain.