Black Mask is a character whose true identity is Roman Sionis, a wealthy businessman who hates Bruce Wayne, and who is bad at legitimate business but has a knack for criminal business and who is obsessed with destroying Bruce Wayne.

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But Shaq's playful personality masks a potent ambition and a shrewd knack for business.

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McClain only lasted a year in the NBA, but after a lengthy playing career overseas he found he had a knack for business.

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Richard Sands learned at the knee of his father, who had a knack for making good business out of ugly business.

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Solis has an uncanny knack for explaining the changing business landscape and prescribing solutions for companies that want to prosper.

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Mr. Wu had a knack for selling hard-nosed business decisions as generosity.

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After studying poetry and literature at Tufts University, he moved to Nashville to translate his knack for songwriting into the country music business.

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Looking back on my Wall Street career, I realize that what I liked most was winning new business for the firm, which of course requires a knack for selling.

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King is a smart and flamboyant operator, with a knack for spotting a good PR opportunity as well as expanding his business.

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It can take a bit to get the mobile cloud-printing knack, but once you do, you will never go back to carrying a pile of business cards.

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