Scrum half Carl Lewis will skipper Cardiff Blues Under-18s as they face an away trip to tackle RGC at Parc Eirias on Sunday (kick-off 12noon).
Blues make a number of changes as they face a second game in four days after a 33-0 victory against Ospreys on Wednesday night.
A new half back pairing will see Lewis combine with fly half Declan Williams while Jessie Lipetz Robic plays at outside centre.
A new-look front row means Corey Domachowski, Aldi Coverdale and Joel Ringer join forces while Tom Hayward wins a call-up to the second row.
The back row also has three new faces for the fixture with Joe Gaughan in a Number Eight alongside flankers Dan Holder and Syd Blackmore.
Cardiff Blues Under-18s:
15 Curtis Povey, 14 Teri Morgan Gee, 13 Jessie Lipetz Robic, 12 Owen Lane, 11 Josh Thomas, 10 Declan Williams, 9 Carl Lewis (c); 1 Corey Domachowski, 2 Aldi Coverdale, 3 Joel Ringer, 4 Tom Hayward, 5 Callum Bradbury, 6 Dan Holder, 7 Syd Blackmore, 8 Joe Gaughan
Replacements: 16 Gerwyn Coleman, 17 Rhys Carre, 18 Eddie Drake, 19 Callum Haggett, 20 Shane Lewis-Hughes, 21 Liam Free, 22 Callum Hall, 23 Aaron Clarke