OTTAWA — Chris Phillips waited a long time to reveal his offensive skills. Phillips scored twice in his 800th regular-season game, and Pascal Leclaire made 25 saves, leading the Ottawa Senators to a 6-2 victory over the Pittsburgh Penguins on Thursday night. Phillips, who entered with one goal in 18 games, scored goals 2:03 apart in the third to put Ottawa up 5-1 and chase Pittsburgh goalie Marc-Andre Fleury. ‘‘I’m not expected to, for sure,’’ Phillips said. ‘‘It feels good to do it and it felt like one of those high energy games, for us anyways, and it’s nice.’’ Milan Michalek got his 100th career goal and Matt Carkner, Chris Kelly and Jonathan Cheechoo also scored for Ottawa, which won its second in a row. Mike Fisher had three assists for the Senators. ‘‘Philly had to wait until his 800th to get two in a row but that was pretty sweet,’’ Carkner said. ‘‘He played really well tonight for us, a solid game and just that he got those two goals was huge for u.