Dylan Thomas turned the Budweiser Irish Derby into a procession with a blistering display in the hands of Kieren Fallon at the Curragh.
Aidan O'Brien's colt quickened up in the style of a top-class horse to justify 9-2 favouritism in the 12-furlong contest.
Gentlewave came with a late flourish to take second while Best Alibi stayed on for third.
Fallon showed admirable patience aboard Dylan Thomas as Dragon Dancer, and then Heliostatic, took them along at a generous pace.
The latter still held the lead as they turned for home, with O'Brien's Mountain in second.
But the winner, third behind Sir Percy in the Vodafone Derby at Epsom, had his rivals comfortably within his radar.
And after finding a lovely gap on the rail, Fallon settled the race within a matter of seconds as Dylan Thomas produced a telling burst of speed inside the final furlong.
The outcome was never in doubt as O'Brien's three-year-old powered to a three-and-a-half length victory over Andre Fabre's Gentlewave, who came wide and late under Johnny Murtagh.
Best Alibi, trained by Sir Michael Stoute and ridden by Michael Kinane, ran a blinder and to hold on for third at odds of 9-1.
O'Brien said: "He was very impressive and has got a lot of natural speed.
"Epsom was a messy race but he's an intelligent horse and jumped quickly and was left in front.
"Epsom was only his second start of the season so he probably - like most of them - came on for the race.
"He's got so much pace that we could drop him back to a mile and a quarter so we have plenty of options.
"Where he runs now will depend on Hurricane Run and where he goes but we'll seriously consider running him in the Irish Champion Stakes (at Leopardstown on September 9)."
Dylan Thomas has been installed as a 7-1 chance by William Hill for the Prix de l'Arc de Triomphe on the back of his impressive triumph.
VC Bet go 8-1 for the son of Danehill to land the Longchamp feature on October 1.
Murtagh felt French raider Gentlewave was unsuited by the quick conditions.
He said: "He's still immature but is a lovely horse with a big future.
"He would have preferred a little more cut in the ground.
"He was never really going to win.
"Kieren went up the inner but I had to pull out and come round two others.
"I was never going to get to him after that."
Stoute, whose third-placed Best Alibi went down by a further one and a half lengths, said: "He had every chance and I'm very pleased.
"I think the trip may have just stretched him a little so I'll probably drop him back to 10 furlongs.
"He loves good or fast ground and has got a great action."
Stoute felt Best Alibi also lost nothing in defeat and said: "He had every chance and I'm very pleased.
"I think the trip may have just stretched him a little so I'll probably drop him back to 10 furlongs.
"He loves good or fast ground and has got a great action."
