to be honest, it is powerful and it does break game design principles we see in dnd but true strick is a "Trap spell" Like "Trap cards" in magic. it's designed to be bad and teach you a lesson about the action economy and that in and of its self is bad design so letting the obvious trap bad spell be good is ok, it's more of a preference in gameplay. I believe the "trap cards" and "Trap option" have no place in card games or dnd so I am fine with overcorrecting the problem. it also opens up some interesting gameplay interaction. it's not overpowered it's just really f***ing good. the only change I would suggest is instead of increasing the number of dice increases the dice size. it would bring it down to just being really good instead of boarding on overpowered.