Lady Cecil is confident Noble Mission will be "very competitive" after deciding to supplement the in-form five-year-old for Sunday's Tattersalls Gold Cup.
While he might lack the brilliance of his incredible full-brother Frankel, Noble Mission has enjoyed an excellent start to the year, winning the Gordon Richards Stakes at Sandown and the Huxley Stakes at Chester.
He will step up to Group One level for the first time at the Curragh this weekend after owner Khalid Abdullah stumped up the required 21,000 euros to add him to the field.
Cecil told www.warrenplacestables.com: "Noble Mission has made an excellent start to the season. We felt he had done very well through the winter and we've been delighted with how he has performed so far in 2014.
"He has earned the right to contest a Group One - hence the decision to supplement for the Tattersalls Gold Cup. The likelihood of there being some ease in the ground came into our thinking, although he seems to go on any ground.
"We've been happy with him since Chester and feel he is capable of once again being very competitive, stepped up to Group One company."
Noble Mission is only supplementary among 15 horses in contention for the extended 10-furlong contest.
Aidan O'Brien has won the race six times, including three of the last four renewals, and his three contenders are Ruler Of The World, Magician and Hall Of Mirrors.
Jim Bolger also has a numerically strong hand with Einsteins Folly, Parish Hall and Trading Leather all in the mix.
Noble Mission is set to be joined on the trip from Britain by the William Haggas-trained Mukhadram, Ed Dunlop has left in Red Cadeaux and Neatico is a possible German raider for Peter Schiergen.
Cardinal Palace, Akira, Alive Alive Oh, Along Came Casey and Euphrasia complete the field.