A field of five runners went to post for the Grade Two feature in County Kilkenny, with Balko Des Flos the 11-8 favourite to follow up his victory in the Galway Plate.
Kylecrue took them along for the first half of the contest before Davy Russell sent Balko Des Flos to the lead in the back straight.
His move was covered by Gordon Elliott's 6-1 shot A Toi Phil and last year's winner Ballycasey, trained by Willie Mullins, but the latter eventually dropped away to leave a straight shootout between the Gigginstown House Stud-owned pair.
A Toi Phil asserted between the final two fences under Jack Kennedy and after pinging the last, he careered away to score by an emphatic six and a half lengths.
Kennedy said: "He travelled and jumped brilliantly. His jumping is a big help - he's very accurate.
"He's very tough and stays going. He's done it well."
Balko Des Flos was a clear second ahead of Ballycasey in third.
Galway Plate runner-up Shaneshill was a big disappointment, finishing a long way behind and beating only Kylecrue home.