Tritonic and Zanahiyr are among eight juveniles declared for the JCB Triumph Hurdle at Cheltenham on Friday.
Zanahiyr is unbeaten in three starts over hurdles this season and edges favouritism for Denise Foster, who recently took over the training licence at Cullentra House from the suspended Gordon Elliott.
The Alan King-trained Tritonic, who was runner-up on the Flat at Royal Ascot last summer, is the clear pick of the home team after successive jumping wins at Ascot and Kempton.
Next in the betting is Quilixios, who is three from three since arriving in Ireland and impressed in Grade One company at last month's Dublin Racing Festival at Leopardstown.
The Cheveley Park Stud-owned four-year-old will make his debut for Henry de Bromhead under Rachael Blackmore after being moved from Elliott’s yard earlier in the month.
David Pipe has high hopes for course-and-distance winner Adagio, while Willie Mullins runs Tax For Max and Haut En Couleurs, who was a narrow winner on his only previous start in France.
Historic Heart (Nigel Hawke) and Talking About You (Sean Curran) complete the octet.
A much larger field of 17 runners have been declared for the Albert Bartlett Novices' Hurdle.
Leading Irish hopes for the three-mile contest include the Mullins-trained Stattler and Foster’s pair of Fakiera and Torygraph.
Paul Nicholls is responsible for two of the big British-trained contenders in Barbados Buck’s and Threeunderthrufive.
Fergal O’Brien’s Alaphilippe and Adrimel from Tom Lacey’s yard are others to consider in a competitive heat.
Petit Mouchoir heads a maximum field of 26 runners for the McCoy Contractors County Handicap Hurdle, while likely favourite Billaway heads 18 declared for the St. James’s Place Festival Challenge Cup.
Mullins appears to hold the aces in the inaugural Mrs Paddy Power Mares’ Chase, with market principals Elimay and Colreevy, as well as Salsaretta and Cabaret Queen, part of an 11-strong line-up.
Ireland’s champion trainer is also responsible for the likely favourite in the concluding Martin Pipe Conditional Jockeys’ Handicap Hurdle in the form of the JP McManus-owned Gentleman De Mee.