Here is the full list of all 15 Choose Wisely achievements.
FINISH WITH RACHAEL
KILL MACHINE
KILL NAGA JAGGA
KILL HELLDRAGGER
KILL THE LION
FINISH WITH ARIEL
FINISH WITH MIHAELA
FINISH WITH LYRIA
FINISH WITH MACDEATH
FINISH WITH CLAUDIUS
FINISH WITH KIMBERLY
FINISH WITH FAUST
FINISH WITH HECTOR
FINISH HARD OR MASOCHIST MODE
KILL 175 MONSTERS