The John Gosden-trained colt chased home stablemate Golden Horn at Epsom earlier in the month and Buick expects another bold show at Kildare.
He said: “The Curragh will definitely suit him. I think he’ll progress, that was only his fourth run.
“It all came thick and fast for him before the Derby, so he’s entitled to improve both physically and mentally.
“He’s a beautiful horse to ride, you can put him where you want in a race and he goes to sleep.
“He’s a galloping horse but he has got a kick, Golden Horn just has another gear, and that showed at Epsom.
“He’s still progressing and learning.”
Oaks winner Qualify is also in the mix.
A shock 50-1 winner at Epsom for Aidan O’Brien, she earned a ‘win-and-you’re-in’ ticket when scoring on the Downs and has been added to the Curragh field.
Jim Bolger could run his Irish 1,000 Guineas winner Pleascach, though she was turned over in the Ribblesdale at Ascot last week. Like Jack Hobbs, she now wears the Godolphin blue.
As well as Qualify, O’Brien could run Derby fourth Giovanni Canaletto, Highland Reel and Kilimanjaro.
Storm The Stars, who ran such a good race to be third behind Golden Horn and Jack Hobbs, is a possible for William Haggas, while, ground permitting, the unbeaten Radanpour is set to be Dermot Weld’s representative.
“We’ll make a decision later in the week, we’ll need some nice ground,” said Weld.
Carbon Dating completes the list.