You can do gold on the tournament suvia in 5 min.
First part as guide D4rkTrooper90 (group up all enemies each round to kill them in one go)
Setup party
Level close tot 20
Use the Perk: ' and back again' on your party of 4 (you will unlock the perk "And back again" after defeating the train-like boss on your way to Nadir)
Use PAT with his explosive skill (you will get the explosive skill after defeating one of the story bosses) I don t know which one for sure)
Paired PAT up with Amon, as one of their bonds is 'Big bang (Increases exploding attacks by 20%)' You dont need it i think.
After grouping and in the battle use the explosive skill. Everybody goes down including your team. Because you have the Perk ' and back again' your team revives and you win the round. Do this for all 5 rounds to win the gold. I did it in 5 min. very easy.