Noelia, Chronomancer Elite

Noelia, Chronomancer Elite enters the battlefield tapped and can't be blocked.
Whenever Noelia, Chronomancer Elite deals combat damage to a player, you may pay {1}{u}. If you do, return her to her owner's hand at the beginning of the next end step and you take an extra turn after this one.
''Time is an old friend to me. It weeps in sadness when I return to the physical world.''