"It was the game like we want to play it.
When we know him better and understand him better, I think he will be more dangerous". The striker had been a doubt having picked up an illness after his Deadline Day arrival from Borussia Dortmund, but any uncertainty about his fitness was swiftly forgotten.
The Armenian joined Arsenal in a swap deal that saw Alexis Sanchez move in the opposite direction, meaning the pair are likely to be compared frequently going forward. One game, one goal, and a message to the rest of the Premier League.
"The two players [Aubameyang and Mkhitaryan] integrated well [into] our game and looked like they had played with us forever", Wenger admitted.
Aubameyang linked up brilliantly with fellow new signing Henrikh Mkhitaryan, with the latter setting up three of the five goals. In the 13th minute, just before Arsenal added their second goal through Laurent Koscielny, Aubameyang was close to scoring himself. "To have a player with his qualities and all he brings to the team to sign for a few more years, it is really exciting for Arsenal and for the fans".
Ramsey would complete his hat-trick courtesy of another Mkhitaryan assist as Arsenal's superb home form continues in stark contrast to their away showings.
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Arsenal now sit in the sixth place in the Premier League and will be looking to climb the table in order to play European football next season.
The Toffees captain Ashley Williams also expressed his anger at the first half performance, and he told the Independent: "The manager was not happy - but none of us are".
Everton did manage to pull a goal back in the second half, with Dominic Calvert-Lewin nodding past Petr Cech before Ramsey capped off a good performance with a hat-trick.
"You can see that he's got electric pace and an eye for goal as well", he said of Aubameyang. After a clever through-ball from Mkhitaryan, Aubameyang lifted the ball over Pickford to make it 4-0 and effectively end the match as a contest.
No side in the top eight of the Premier League has conceded more goals than Arsenal's 34 this season and their defensive frailties were again clear as they lost 3-1 at relegation threatened Swansea on Tuesday night.
He said: "When you have new players it gives always a little positive swing, and it wakes everybody up as well, because there's suddenly competition so they have to live with that as well".