Trigon systematically breaks the spirits of the other Titans—Hawk, Dove, and Jason Todd—by forcing them to confront their deepest traumas and failures in nightmarish hallucinations.
Titans season 2 premiere recap: Trigon - Entertainment Weekly "Titans" Trigon(2019)
To manifest his full power on Earth, Trigon requires Rachel Roth's (Teagan Croft) heart to be broken. He achieves this by having a possessed Dick Grayson seemingly kill Beast Boy (Gar Logan), forcing Rachel to watch in horror. Trigon systematically breaks the spirits of the other