Connor McDavid scored his 27th goal of the season in the third period and it stood as the winner as the Otters slipped past Owen Sound.
Kyle Pettit had a goal and two assists for Erie (36-12-3). Jake Marchment and Remi Elie also scored.
Petrus Palmu struck twice for the Attack (23-19-9), with Santino Centorame adding the other. Chirs Bigras had three assists.
Bigras now has 138 points in his career - which is four shy of the record in Owen Sound for points by a defenseman.
The Attack had a 2-1 lead after the first period in what was a well played game for Owen Sound.
The Attack are back in Erie tonight for the second tilt with the Otters in two nights.
Elsewhere, Brandon Robinson had a hat trick and added an assist as the Rangers scored five times in the third period to double up Mississauga 6-3.
Tyler Bertuzzi scored the winner in a shootout and Justin Nichols stopped 58 shots as the Storm edged Sarnia 4-3.
The Greyhounds routed the Saginaw Spirit 7-1, zachary Senyshyn had a hat trick to lead the Sault Ste. Marie Greyhounds. The Oshawa Generals hamered Kingston 7-1. Michael Dal Colle had a four-point night _ including two goals. The Barrie Colts won 5-3 over the Whalers.
Connor Graham scored the winner with under five minutes remaining in the third period as the 67's slipped past Belleville 3-2.
And Max Domi was one of three London forwards to score twice as it snapped a six-game losing skid by routing the Wolves 10-2.