Meanwhile manager Roy Keane has offered new contracts to midfield pair Liam Trotter and Shane O'Connor.
But it underestimated the opposition among other groups, such as A Just Republic, headed by Pat O'Shane, Australia's first aboriginal barrister and magistrate, and Real Republic, represented by Tim Costello, a Melbourne Baptist minister.
Martyn Williams, Ronan O'Gara and Simon Shaw are all are on their third Lions tour, while Shane Williams, Andrew Sheridan and O'Connell, plus replacements Stephen Jones and Phil Vickery, are on their second.
Captain Brian O'Driscoll, Rob Kearney and Shane Horgan also crossed as Ireland built on a 13-3 halftime lead.
Shane Geragthy levelled with a penalty, only for O'Gara to put Munster six clear with two more penalties.
Wings Luke Fitzgerald and Shane Horgan each claimed a brace, while Brian O'Driscoll, Jonathan Sexton and Girvan Dempsey also crossed.
The Yankees reassigned RHPs Corey Black, Matt Daley, Nick Goody, Shane Greene, Bryan Mitchell, Zach Nuding, Mike O'Brien and Ryan Pope, and INF Kyle Roller to their minor league camp.
For a start, with Gordon D'Arcy a certainty to be ruled out, O'Sullivan will be looking to get Shane Horgan back up and running with a splinter on a fractured thumb.
BBC: SPORT | Rugby Union | Six Nations | Decision time for O'Sullivan
Brian O'Driscoll, Earls, Rob Kearney and Shane Horgan added further touchdowns after the interval.
Ireland also have the luxury of a big impact from the bench with the experienced Paul O'Connell, Rory Best, Simon Easterby and Shane Horgan all raring to go.
Stephenson and Shane Berne looked to have sealed an easy win but tries from Hefin O'Hare and Ruaridh Jackson set up a grandstand finish.
Ronan O'Gara, Gordon D'Arcy, Jonathan Sexton and Shane Horgan were also rested from Tuesday's training.
And to complete a disappointing day for Leinster, Ireland skipper Brian O'Driscoll limped off in the closing seconds with an injury while winger Shane Horgan went off with a rib problem.
O'Sullivan said his team should have been awarded a first-half try when Shane Horgan charged at the Welsh line.
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