In their last match, Villa took home three points from Stamford Bridge against Chelsea and they will be looking to continue their winning streak when they face Arsenal at home tomorrow morning at 03.15 WIB.
"Tomorrow's challenge is very difficult, maybe the most difficult, because they are the best team," Emery told Aston Villa's website on Tuesday.
"You have to adapt to your opponent, impose your game on them, win individual duels, set pieces, and structure your tactics against them," he added.
Three weeks earlier, Villa inflicted a second defeat on the Gunners at Villa Park thanks to two goals from Emiliano Buendia.
However, Emery said, the match will be different because Arsenal will have the support of tens of thousands of their own fans.
