good at

See: deft
References in classic literature ?
Then if the just man is good at keeping money, he is good at stealing it.
Among 35- to 44-year-olds, his rating fell from very good to good at +46 (65 percent satisfied, 19 percent dissatisfied) from +52 (67 percent satisfied, 15 percent dissatisfied).
While rivalness exists if a consumer borrows a CD from another consumer, it is not present if the digital good is copied instead, as both consumers can enjoy the same unit of good at the same time.
Aquinas also refers to justice as part of the common good at ST I-II, q.
If he likes your new sweater, he'll tell you because he's good at doling out compliments.
A coach should find something he's good at and run with it.