Roger Varian's Ambivalent is one of 15 fillies and mares in contention for the Newbridge Silverware Pretty Polly Stakes at the Curragh on Sunday.
She notched up her first Group One win in the contest 12 months ago and has continued in great form, running well against the colts in Dubai and going close in the Coronation Cup at Epsom.
Ambivalent carries plenty of stable confidence in her bid to repeat her victory.
"She's in great form. She came out of Epsom really well. It was a really good run there and was probably almost a career best after Dubai," Varian's assistant David Eustace told At The Races.
"Ground doesn't seem to be an issue with her this year. We thought she was best on fast ground, but it was good to soft at York when she won.
"She'll go there with a good chance of winning the race again."
Aidan O'Brien's Venus De Milo, narrowly beaten in the Irish Oaks last year, looks the main Ballydoyle contender.
O'Brien could also be represented by Marvellous, Palace, Peace Burg and Terrific.
Other possible runners from Britain include Charlie Hills' Just The Judge, a late withdrawal at Royal Ascot, Roger Charlton's Thistle Bird and John Gosden's unbeaten Pomology.
David Wachman's Lahinch Classics was narrowly beaten by Epsom third Volume at Newbury while Eddie Lynam will be hoping his good run continues with Pearl Of Africa and John Oxx could run Harasiya.
Along Came Casey, Euphrasia and Avenue Gabrial, fourth in the Irish 1000 Guineas, complete the field.