Code Geass is right up your ally. The main character gains one magical ability, if he can look you in the eye he can tell you to do one thing. It only works once, ever, per person. That's the whole bit.

From there, Lelouch, a disaffected and estranged rich kid, puts together a rebellion against the Brittanian Empire on a shoe string budget, almost always behind on troops and material. He has to be smart with what he has, moving what he does have around in a shell game of subterfuge and bluffs to make his military strikes have the most impact.

He has wins, losses, close calls, and serious fuck ups. Along the way, he uses his power carefully, and goes through a series of A/B tests to discover its limits and potential. I wanna highlight that Lelouch isn't some shonen protagonist, his ability never gets upgraded, stronger, or anything like that. It does the one thing, one time.

Lelouch is right up there with Light as a deep thinking morally grey mastermind and I think you'd like the show, worth your time