Eddie Lynam's Balmont Mast nearly pulled off a 33-1 surprise in the Golden Shaheen at Meydan but just failed to catch Reynaldothewizard.
The Satish Seemar-trained winner, ridden by Richard Mullen, had won twice at the Carnival already but was stepping up markedly in class and only held off the Irish challenger by a neck.
Tom Hogan's Gordon Lord Byron met trouble on the rail, but when the gap came he could not quicken, and Godolphin's red-hot favourite Mental never threatened to get involved at any stage.
Mullen said: "I was disappointed earlier in the evening as the track rode too slow for Surfer in the Godolphin Mile, so it is really great to win this.
"I am delighted for Mr Seemar - I do the easy bit sitting on top of the horse and doing the steering, but it is the trainer who carries out all the hard work and he richly deserves this."