Giancarlo Stanton put on an unprecedented power show on Wednesday, crushing two laser-shot home runs, but it was Wilmer Flores’ multihomer game that loomed larger on the scoreboard. Flores connected twice off Justin Nicolino, and Curtis Granderson added a two-run single that provided all the support Jacob deGrom needed in the Mets’ 4-2 win over the Marlins at Citi Field.