The Goddess has been summoning and reincarnating a broad range of people in order to stop the Hero from destroying the world, but they all seem to have ended in failure. However, all the reincarnations that had been conducted until now were for the purpose of gathering data. With the data she has gathered, she summons the person most likely to stop the Hero.
Otherwise, this assassination 
attempt never could've succeeded.
وإلّا لما نجحت محاولتي في الاغتيال أبداً
Sonst wäre mir
dieses Attentat nie gelungen.
Mi intento de asesinato habría fracasado
de lo contrario.
Mi intento de asesinato
habría fracasado de lo contrario.
Sans ça, ça aurait été impossible.
Altrimenti, l'assassinio 
non sarebbe andato a buon fine.
Caso contrário, minha tentativa de
assassinato nunca teria sucesso.
В противном случае мои попытки
убийства не увенчались бы успехом.