Premiership rivals Exeter and Gloucester have been drawn together in pool two, and they are also joined by Munster and reigning French champions Castres. Castres emerged winless from two pool games against the Munstermen last season - going down 48-3 at Thomond Park in January - but were crowned Top 14 champions just under three weeks ago.
Three-time Champions Cup finalists Clermont of France and English side Northampton, the 2000 European champions, will provide stiff competition for Dragons, while Romanians Timisoara provide less familiar opposition.
Another French club, Bordeaux and Aviva Premiership side Sale Sharks complete the draw for the Irish Province.
Neymar roasted for World Cup con job as Brazil defeats Costa Rica
Costa Rica is looking to repeat is unlikely sucess at the 2014 World Cup , where the team reached the quarterfinals. With this victory, Brazil will progress to Round of 16, while Costa Rica goes back home.
"They will all be tough games".
In last season's Champions Cup, the north Londoners were beaten 30-19 in the quarter-finals by eventual winners Leinster. Can they add to their development in 2018/19 Challenge Cup fixtures?
Argentina's World Cup future depends on Iceland failing to beat Nigeria
The Croats continued their winning streak yesterday when they beat Lionel Messi led Argentina team 3-0 to dominate the group. Nigeria's players huddle together prior to their 2018 World Cup Group D match against Croatia on June 16, 2018.
Ulster were 27-20 winners over the Scarlets in Belfast in the early weeks of the 2017/18 campaign but have not won at Parc y Scarlets since December 2012.
Powerful French club Racing are fresh opponents for the Ulstermen, with Ireland internationals Donnacha Ryan and Simon Zebo standing out on their squad list. You can view the full draw for both the Champions Cup and Challenge Cup at the head of this article.
The final will be played in Newcastle on May 11.
Etsy CEO Hails Supreme Court Chief Justice Dissent in Sales Tax Case
In addition to being a win for states, the ruling is a win for large retailers, who argued the physical presence rule was unfair. In theory, customers who shopped on those sites were supposed to pay taxes themselves, through the state's use tax, but few did.
The Falcons are back in European rugby's top competition after a 14-year absence, with their last appearance ending in a 2004 quarterfinal defeat to Stade Francais.