Last year's winner Quevega features among 31 entries for the David Nicholson Mares' Hurdle at Cheltenham on 16 March.
Willie Mullins' six-year-old turned in one of the most impressive performances of last year's Festival when scoring by 14 lengths but has been off the track since disappointing in May.
The six-year-old is one of 11 Irish-trained entries, along with stablemates J'y Vole and Morning Supreme, and Colm Murphy's Voler La Vedette, who is unbeaten in four starts.
The British team includes a quartet from Nicky Henderson's stable in Carole's Legacy, Here Comes Sally, My Petra and Stravinsky Dance.
Donald McCain won the inaugural David Nicholson Mares' Hurdle in 2008 with the recently-retired Whiteoak and could bid for another success in the Grade Two event with Alegralil.
Argento Luna is to be Oliver Sherwood's sole representative at the Festival.
The Lambourn trainer has enjoyed some success at the meeting over the years and has won the Arkle and the race now known as the Neptune Investments Novices' Hurdle.
Argento Luna won the mares' final at Newbury last March but has struggled for consistency this term.
‘Argento Luna will run in the David Nicholson mares' race, then it will be the Guinness tent,’ joked Sherwood.
‘She has only run three times this season - she was brought down once as well and a stiff two and a half miles will be ideal.
‘She would have an outside each-way chance.’