Thirty-year-old Marshall has spent most of the past three seasons as cover for Ruan Pienaar, but intends to enjoy the wearing number 9 while the World Cup is in operation.
“On a personal level I just want to play every week,” he said, “I’m enjoying it at present and feel like a leader. I just wish I knew back when I played my first game what I know now, then things might have been slightly different for me!
“It will be really nice to get my 150th cap tonight. When you’re a schoolboy you dream of playing for Ulster and to have done that on so many occasions is a real privilege.”
Marshall will again be accompanied at half-back by stand-in out-half Peter Nelson, with Ian Humphreys considered fit enough for the bench. Meanwhile, Luke Marshall picked up a thumb injury in training and Sam Arnold comes in to partner Stuart McCloskey in midfield in what will only be his second start.
Up front, Robbie Diack has a thigh injury so Nick Williams returns at number of eight with Roger Wilson at six and Sean Reidy at openside. Edinburgh, who defeated Ulster in a pre-season friendly, have made three changes with Hamish Watson and Nasi Manu returning to the back row as Nathan Fowles comes in at scrum-half.