Willie Mullins is looking to muller the field in the William Hill Champion Chase at Punchestown on Tuesday, sending both Energumene and Chacun Pour Soi to the opening day of the Festival.
Mullins' formidable pair head the betting for the two miles, Grade 1 contest after battling it out in the Queen Mother Champion Chase in which Chacun Pour Soi unseated his rider and Energumene ran on to a famous win.
There will be no Nicky Henderson's Shishkin of course but the race still looks to be a thrilling one in a bijou field which also includes Henry De Bromhead's Captain Guinness and Envoi Allen.
Gordon Elliott's Andy Dufresne is an intriguing entry, second in the Grand Annual at Cheltenham.
Envoi Allen was once the bright light of Irish jumps racing but his 18/1 general odds for the race suggests he may not be the star of before. Yet, Henry De Bromhead is happy enough with the prep work, saying "We were delighted with Envoi Allen in Cheltenham," said De Bromhead of the Queen Mother third.
"He jumped really well, travelled well. His wind just isn't as good now as it was so I'd say the ground just caught him out. We're hoping the better ground will suit him. He's in super form."
Meanwhile, Mullins heads the market for the five runners in the Bective Stud Champion Novice Hurdle with Sir Gerhard brought back up to two miles and a strong favourite.
Dysart Dynamo is second favourite for Mullins, looking to cash in on his obvious ability despite falling in the Supreme Novices' Hurdle.
Gordon Elliott sends Mighty Potter and Vina Ardanza to add further depth to the field.
Bob Olinger steps up to three miles in the Dooley Insurance Group Champion Novice Chase, going up against Mullins' Capodano who carries the green and gold JP McManus silks.
English raider Millers' Bank is a very interesting runner for the Alex Hales yard, a runaway winner at Aintree and looking to bloody the noses of the hosts.
Millers Bank put a full 10 lengths between himself and Colin Tizzard's War Lord in the Manifesto Novices' Chase on Merseyside, which looks solid form to take to the Emerald Isle.