Pierre-Emerick Aubameyang and Alexandre Lacazette's burgeoning strike partnership came to the rescue as Arsenal eventually shook off Cardiff City to claim a 3-2 win in the Welsh capital.
Shkodran Mustafi headed the visitors into an 11th-minute lead before Neil Warnock's side averted a seventh consecutive goalless half in the Premier League this season when Victor Camarasa pounced in stoppage time.
Unai Emery brought Mesut Ozil and Lacazette into his XI and both were involved in Aubameyang's brilliant 62nd-minute goal, only for Danny Ward to find a swift response.
Lacazette was harshly adjudged to have fouled Harry Arter for the free-kick that led to Ward's leveller but the French striker had the last laugh on his first start of the campaign, darting around Sol Bamba and blasting beyond Neil Etheridge at the Cardiff goalkeeper's near post.
Etheridge was out quickly to prevent Nacho Monreal from doubling Arsenal's lead and Lacazette sent a low shot skidding against the base of the post.
Camarasa was fortunate to see the ball fall his way, having failed to control Joe Bennett's cross, but steered home unerringly.
A frequently scrappy encounter enjoyed a moment of stunning quality after the hour and all Arsenal's star attackers were involved.
Lacazette flicked Ozil's pass into Aubameyang's path and the ex-Borussia Dortmund star curled a wonderful effort across Etheridge from 25 yards.
It was not enough to dissuade Cardiff, however, and Ward expertly guided Sean Morrison's header back across goal in off the post with 20 minutes to play.
Bobby Reid lost his footing when an improbable Cardiff victory beckoned; Lacazette had no such troubles on the end of substitute Lucas Torreira's 81st-minute pass.
What it means: Emery's Gunners finding their feet
Arsenal will remain a work in progress under Emery for some time but the character they showed in the face of tireless opponents bodes well, as does an increasingly sharp forward line. The evidence so far suggests Cardiff are unlikely to score twice in the same Premier League game too often. Commendable as this performance was, Warnock's men have two points from four games and a missed opportunity to reflect upon.
Pat on the back: Laca…BOOM!
Lacazette's rasping finish showed exactly why Arsene Wenger made him Arsenal's record signing last close-season. He lost that distinction and a starting spot when Aubameyang arrived in January but the ex-Lyon forward's efforts to show they can play in tandem are paying off.
Boot up the backside: Cech's passing woes continue
Arsenal's veteran goalkeeper had already endured a couple of dicey moments with the ball at his feet before leaving a chance on a plate for Arter. He duffed an early second-half clearance straight to Junior Hoilett, again getting away with it. Emery's decision to keep Bernd Leno in reserve becomes more perplexing by the week.
Key Opta facts
- Arsenal have collected six points in their last three away Premier League games (W2 D0 L1), as many as in their previous 11 away games combined (W1 D3 L7).
- Since his Premier League debut in February, only Liverpool's Mohamed Salah (15) has scored more Premier League goals than Pierre-Emerick Aubameyang (11).
- Victor Camarasa's goal for Cardiff ended a run of 415 minutes without scoring for the Bluebirds in league competition.
- All six of Shkodran Mustafi's Premier League goals have been scored via set-pieces (three from corners, three from free-kicks), with five of them headed goals.
A similar challenge awaits for Arsenal, who travel to Newcastle United after the international break. Cardiff will take their underdog show to Chelsea.