The 23 times capped Wales international is one of a host of new signings at Rodney Parade as the Dragons look to climb up the Guinness PRO14 table.
And after linking up with Bernard Jackman’s side for pre-season, the powerful loose forward is looking forward to what lies ahead.
“A lot of changes have happened since last season with players leaving and players coming in,” he said.
“I’m really excited because there have been a lot of changes here and I’ve already seen the boys working hard for each other.
“I think everybody knows what I’m about and that’s what I am going to bring every week. It’s nice to be a little bit closer to home and to be in a new environment where I knew some of the boys from when I was younger.
“I’m just looking forward to getting out on to the field.”
Moriarty was a key figure as Wales recorded a stunning clean sweep of Test victories against South Africa and Argentina respectively this summer.
And the 24-year-old believes he played some of his best rugby in a Wales shirt on the tour.
“I enjoyed the tour,” he said.
“Considering how little I had played that season I was happy with the work I got through. I felt I made good impacts on the games and I felt my physicality was good which is what we needed.
“We had a young squad and quite a few players who hadn’t played for Wales before and I felt that I gave them confidence.
“I was really happy to be out there on the field for 80 minutes three times in a row for the first time that season.”
