SImon Zebo scored a sensational try as Munster's much-changed side proved too much for Ospreys to handle in a 23-3 Pro12 semi-final win at Thomond Park.
Rassie Erasmus made 12 alterations to the side that secured top-spot with an emphatic 50-14 victory over Connacht in the previous round and the returning Zebo touched down a contender for try of the season.
The Ireland international, deployed at full-back, finished off a stunning move that began near the Munster 22.
Scrum-half Conor Murray, back in the XV for the first time since damaging his shoulder during Ireland's defeat to Wales in March, played a pivotal role in the score, providing a boost for the British and Irish Lions ahead of the tour to New Zealand next month.
Francis Saili and Andrew Conway also cross for Munster, who will take on Scarlets in next weekend's final at the Aviva Stadium.
Ospreys' hopes were hit ahead of kick-off when Rhys Webb, another Lions pick, was forced to withdraw from the squad with a groin injury, but Dan Biggar got three points on the board in the seventh minute.
Saili picked the ball up from a ruck to dart in for the first try on the left and Tyler Bleyendaal's penalty sent them into the break 8-3 up.
Ospreys pushed for a route back into the game but Zebo crowned a sensational move featuring Murray, Saili and Keith Earls to put them out of sight.
Scott Otten saw his brilliant solo try after a chip and chase chalked off for a knock-on earlier in the move, and Conway added some gloss to the score with six minutes remaining.