Five years on from selling Pigsback for €25 million, Michael Dwyer’s competitive mindset from business is paying dividends on the poker table. The Irish entrepreneur recently won big in a poker tournament, nabbing a cash prize of $1.3 million. There are a lot of clichés to be made about the similarities between poker and business: knowing when to go all in or to cash out, and having a competitive streak. That competitive streak is something Dwyer seemingly has in spades. Playing under his pseudonym, Mickster, the founder of Pigsback landed the runner-up position earlier this month in the GGPoker Super…