The magic one for sure. I have no doubt that I would not only recover my memories of past lives but would ascend to much greater heights, perhaps grasping immortality itself. With dimensional and time travel, shapeshifting, I might even come back to this world. Maybe I’d turn my other self into newt and take his place. Or imbue him with forbidden knowledge and power. Or take him with me. Or maybe we’d just end up having a bunch of freaky shifting magic sex.

“Hey me, it’s you, from a world of magic. I’m here to rescue you.”

“Wow, how unexpected. Also, you’re hot.”

“Baby, I’m about to blow your mind.”