Without Luck by Mason Parker

Dinn is unkillable. Almost.
Even so, she’s been on the run for six years. She has trusted, even loved before, but that is in the distant, painful past. Now, nowhere is safe. All she can do is run from Silas, the man who hunts her.
Another betrayal finds Dinn once again in his grip, but this time he’s brought something he’s never had before: another luck carrier. A farmhand named Benjamin thrown into a world of turmoil. He still has naïve innocence in his eyes. Innocence Dinn remembers all too well in herself.
She has only two choices.
Give up her magic to save him or leave him to his fate.