Only 2 skills to use? hmmm.. let's see, as a DRG 41 (not necessarily in priority order - sorry, can't remember the name of the skills^^):
1. put slow and keep it refreshed
2. put DOT and keep it refreshed
3. place myself in the back of the mob and do my Disembowel 2 skills-combo to make the mob weak to piercing and keep it refreshed
4. place myself on the side of the mob and get my damage self buff and keep it refreshed
5. use Jump when available
6. use my 3-skills main combo

yes... I feel it quite boring with only those 2 skills to use