Ante-post BetVictor Gold Cup favourite Slate House is one of 25 confirmations for the showpiece race at Cheltenham
Colin Tizzard's seven-year-old emerged from a spell in the doldrums to win at Cheltenham's first meeting in October, and has been prominent in the betting for Saturday's big handicap ever since.
"We had this mind throughout the summer," said assistant trainer Joe Tizzard.
"Last season, he was out of form because he damaged himself in the novice hurdle at Aintree, so he never got turned out - he was on box rest throughout the summer.
"He was always on a bit of catch-up last season. We felt he ended up getting quite a nice mark, which we possibly lost at Cheltenham last time.
"We thought we would go to Cheltenham first time out and bump into one and not get handicapped accordingly - but it is a good job the performance at Cheltenham was visually very good. We expected him to run well, but not do what he did."
Topping the weights is Harry Whittington's Saint Calvados, another to win at the October meeting.
Nicky Henderson's Casablanca Mix, Festival winner Siruh Du Lac and Dan Skelton's Spiritofthegames are others towards the head of the weights.
Henderson said of his mare: "We've only left in Casablanca Mix in the hope that it will continue to dry out a bit. O O Seven is not quite ready for the race.
"She won the Summer Plate at Market Rasen. If it can stay dry that would help. She has gone up in the weights, so she has got to come into races like this.
"She is a good mare. That summer race always takes a lot of winning. She has had a break since then, and she has been back home."
There is one possible runner from Ireland, Joseph O'Brien's Arkle runner-up Us And Them.
Knocknanuss, Belami Des Pictons, Guitar Pete, Eamon An Cnoic and Splash Of Ginge are among others left in.
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