Just seven points separated all five teams in the group stage, with the identity of the two sides contesting for the title only decided after the final round of fixtures earlier this week.
Ironically, the last group stage match was a precursor to Sunday's game with the Dragons downing the previously unbeaten Blues 28-12 at Pandy Park on Wednesday. The four-try bonus point victory sent the Dragons into the final as they edged out the Scarlets and north Wales outfit RGC 1404 by a single point. The two sides also clashed in the final held two years ago, a contest the Blues edged that day.
Both regions have named strong sides for Sunday's encounter with the Dragons fielding much the same team which defeated the Blues on Wednesday. Keagan Bale and Leon Brown will be key men in the front row with Harrison Keddie leading the side from No. 8.
"Beating the Blues earlier this week was a big boost to the boys and we can go into the final knowing we can get a result,” said WRU Performance Manager for the Dragons region James Chapron.
"At the same time, it will be a different day and a different game. The Blues will want to get one back over on us and they finished above us in the league. They've got a strong side but we're confident in our team and what they can deliver on the field.
"All the players, coaches Byron Hayward, Rob Sidoli and Dai Flanagan and all the staff have worked incredibly hard to get to this stage and deserve some success.”
While the Dragons have the confidence from their win earlier this week, the Blues include a number of Wales Under 18 internationals with Liam Belcher leading the side. The young hooker has already played Principality Premiership rugby with Pontypridd this season, as has fly half Jarrad Evans.
Wales Under 18 head coach Allan Lewis will be an interested observer this afternoon and he has reserved special praise for this year's tournament.
"All five teams have been incredibly competitive this year with a high standard of rugby across the board. It's all about giving these young boys the chance to play,” he said.
"The WRU pathway starts with the Wednesday Under 18 League with players then progressing to the Regional Age Grade Championship, and the best of those will progress on to international level with the Wales Under 18 side.”
Lewis will finalise his squad for the forthcoming Wales Under 18 internationals against France and England and the Easter FIRA-AER tournament after Sunday's final.
Dragons U18s team to face Cardiff Blues U18s team
Steffan Oljzanski , Patric Lewis, Barney Nightingale, Connor Edwards, Lloyd Lewis, Arwel Robson, Owen Davies; Keegan Bale, Ellis Shipp, Leon Brown, Lewis Johnson, Ben Watts, Lloyd Phillips, James Sully, Harrison Keddie (c).
Replacements: Jack Williams, Jack Davies, Luke Leadington, Gareth Allen, Seamus Casey, Ben Pesci, Connon Goode, Gorge Gasson.
