Willie Mullins is responsible for seven of the 61 entries for the Randox Health Topham Chase at Aintree on April 7.
This year's team includes Ballycasey, winner of the PWC Champion Chase and the Red Mills Chase at Gowran this season, and Haymount, who was third in the National Hunt Chase at last week's Cheltenham Festival.
There are a total of 17 Irish-trained entries, including recent Navan winner A Toi Phil, who is one of three entries for Gordon Elliott.
The home team is headed by last year's winner Eastlake, whose trainer Jonjo O'Neill also has Go Conquer and Fort Worth in the mix.
O O Seven, Gold Present and Cocktails At Dawn, who also holds an entry in the Grand National, could represent Nicky Henderson, who has won the Topham five times.
Other contenders include the Paul Nicholls-trained Frodon - one of five entries for the Ditcheat handler - and Robin Dickin's stable stalwart Thomas Crapper.
Dickin said on Wednesday: "The Topham Chase is definitely an option for Thomas Crapper. I want to see how he is nearer the time before committing because he has produced two big performances in competitive handicaps in quick succession. It will either be Aintree or Cheltenham the following the week.
"He knew he had a race after Cheltenham, but he is well and eating everything. He is in good order.
"They dropped him 2lb for Cheltenham as he was originally due to go up 11 for his win at Newbury. I thought that was sensible because if he could not win with a 5lb penalty, how was he going to win with 11lb more?
"He will have a school over some Aintree style fences as he hasn't done that yet. I don't think they will be a problem to him at all. He is a very accomplished jumper and, as my jockey pointed out to me yesterday, Aintree is different to what it was like it was in my day.
"He thrived for moving up from hurdles to fences and he could well thrive again for the switch to those fences around Aintree. The race could really suit him if we get good ground."
Weights for Topham Chase will be revealed on Wednesday March 29.
Randox Health Topham Chase Entries:
A TOI PHIL (FR) 7 Gigginstown House Stud Gordon Elliott IRE
AACHEN 13 Tony Bloom Venetia Williams
ALELCHI INOIS (FR) 9 L McMahon/Mrs F Murphy/F Mangan Willie Mullins IRE
ART MAURESQUE (FR) 7 Mrs Johnny de la Hey Paul Nicholls
AS DE MEE (FR) 7 The Stewart Family & Judi Dench Paul Nicholls
BALLYCASEY (IRE) 10 Susannah Ricci Willie Mullins IRE
BALLYKAN 7 Simon Munir & Isaac Souede Nigel Twiston-Davies
BLAZER (FR) 6 J P McManus Willie Mullins IRE
BOUVREUIL (FR) 6 J P McManus Paul Nicholls
BRIGHT NEW DAWN (IRE) 10 Boultbee Brooks Ltd Venetia Williams
CLARCAM (FR) 7 Gigginstown House Stud Gordon Elliott IRE
COCKTAILS AT DAWN 9 Robin Geffen & Sir John Ritblat Nicky Henderson
CODY WYOMING 11 Charlie Mann Racing Club I Charlie Mann
DEFINITE RUBY (IRE) 9 James W Power Gordon Elliott IRE
EASTLAKE (IRE) 11 J P McManus Jonjo O'Neill
FATHER EDWARD (IRE) 8 Fergus Wilson David Pipe
FORT WORTH (IRE) 8 Sleeping Panther Racing Jonjo O'Neill
FRODON (FR) 5 P J Vogt & Ian Fogg Paul Nicholls
GAS LINE BOY (IRE) 11 The Three Graces Ian Williams
GO CONQUER (IRE) 8 Paul & Clare Rooney Jonjo O'Neill
GOLD PRESENT (IRE) 7 John & Barbara Cotton Nicky Henderson
GONE TOO FAR 9 Fergus Wilson David Pipe
GOWANAUTHAT (IRE) 9 Mrs J M Mayo Charlie Mann
HAYMOUNT (IRE) 8 Mrs C M Hurley Willie Mullins IRE
HEIST (IRE) 7 M Deren Patrick Griffin IRE
HENRYVILLE 9 R P B Michaelson & E M Thornton Harry Fry
HOME FARM (IRE) 10 Chris Jones Andrew Lynch IRE
IMJOEKING (IRE) 10 K Alexander Lucinda Russell
IRISH CAVALIER (IRE) 8 A McIver Rebecca Curtis
KATACHENKO (IRE) 8 Trevor Hemmings Donald McCain
KATNAP (FR) 10 Mrs F Murphy/Mrs A McManus/Mrs T Grant Joseph O'Brien IRE
KNOCK HOUSE (IRE) 8 Tim Leslie Donald McCain
LONG LUNCH 8 Battersby, Birchall, Halsall & Vestey Charlie Longsdon
MORNING REGGIE 8 Tim Syder Oliver Sherwood
MR DIABLO (IRE) 8 Aidan Glynn J P Dempsey IRE
O MAONLAI (IRE) 9 Colin Perry Tom George
O O SEVEN (IRE) 7 Triermore Stud Nicky Henderson
PECKHAMECHO (IRE) 11 G Thompson Sophie Leech
PORTRAIT KING (IRE) 12 James Beaumont & Douglas Pryde Patrick Griffin IRE
QUITE BY CHANCE 8 T Hamlin,J M Dare, J W Snook, J T Warner Colin Tizzard
RUBEN COTTER (IRE) 11 Sean Conway Mark McNiff
SAMBREMONT (FR) 7 Shanakiel Racing Syndicate Willie Mullins IRE
SEEFOOD (IRE) 10 C E Stedmand & Jim Provan Dr Richard Newland
SEVENTH SKY (GER) 10 Fidelma Toole Charlie Mann
SIR NOTE (FR) 7 G F Chesneaux James Eustace
SOLAR IMPULSE (FR) 7 Andy Bell & Fergus Lyons Christopher Kellett
STELLAR NOTION (IRE) 9 Roger Brookhouse Henry de Bromhead IRE
STRAIDNAHANNA (IRE) 8 M B Scholey & R H Scholey Sue Smith
THE CRAFTY BUTCHER (IRE) 10 P Byrne/P W Mullins/D Ryan/I Madigan Willie Mullins IRE
THE PAPARRAZI KID (IRE) 10 Byerley Racing Syndicate Willie Mullins IRE
THIRD INTENTION (IRE) 10 Robert and Sarah Tizzard Colin Tizzard
THOMAS BROWN 8 The Corse Lawners Harry Fry
THOMAS CRAPPER 10 Apisukcom Robin Dickin
THOMOND (IRE) 9 Patricia Hunt Noel Meade IRE
TIQUER (FR) 9 Burnham P & D Ltd Alan Jones
ULTRAGOLD (FR) 9 Brocade Racing J P Romans Terry Warner Colin Tizzard
VIC DE TOUZAINE (FR) 8 A Brooks & G Moore Venetia Williams
VINTAGE VINNIE (IRE) 8 Trembath, Hyde, Outhart & Hill Rebecca Curtis
VIVA STEVE (IRE) 9 Paul & Clare Rooney Fergal O'Brien
WARRIORS TALE 8 Michelle And Dan Macdonald Paul Nicholls
WITNESS IN COURT (IRE) 10 Tim Leslie Donald McCain