Another uncapped wing, Kelsie Webster, along with second-half replacements Stella Orrin, Lucy Isaac and Lily Hawkins, all made their first appearances for Wales.
Bryonie King hugely impressed at number eight in a player of the match performance.
In a display reminiscent of Sioned Harries in her heyday, King went close to scoring, had another effort ruled out for a double movement and galloped half the length of the field in another barnstorming break.
Wales and Lynn finally appear to have options in positions before facing some of the world’s best later this year.
Barbarians: Cramet; Tui, Pena, Tessier, Lund; McGovern, Mattinson; Delgado Duenas, Phillips, Belize, P Leitch, Bonar, Rule, Chancellor (capt), Marston-Mulhearn.
Replacements: Tuttosi, B Cleall, Jacob, Buckland-Hurry, Arrighetti, Maxwell, Tuima, Quansah.
Wales women: N Metcalfe; Webster, Keight, De Vera, Williams; Powell, Lockwood; Davies, Reardon, Tuipulotu, B Metcalfe, Aiono, A Joyce, Callender (capt), King.
Replacements: Jones, Baverstock, Orrin, A Pyrs, Isaac, Hawkins, Bevan, Bell.
Referee: Nikki O’Donnell (England)
Assistant Referees: Emily Hope, Becky Piddlesdon
TMO: Craig Maxwell-Keys
