Going about making a tactical RPG

Hello! i’ve been pondering about making a tactical RPG game for a while now and I’ve been curious about the various strategies to employ when going about doing it.

If you are unfamiliar with tactical RPG’s here are some video examples:

(the first video is from the game “Dofus” and the next two are from “Wakfu”)

I already know what systems to add, but what I’m having trouble with is finding a way to implement them well.

I like that kind of Game, maybe you could implement them in some way, depending on the main Genre and Plot (because every RPG needs one)

Anyway if you could help us with that we can give more context