No healer means you can't win a long fight - all-in on the opener and Repentance the Druid to prevent HoT upkeep.
This is a slow grind that doesn't favor a double-DPS comp - try to isolate the Warrior with Repentance and burst him before the Paladin can bubble.
Blessing of Protection can save your kill target from a Fear/DoT chain - use it to survive the opener, then reset the fight.
No healers either side - the opener decides it, so land Repentance/Cheap Shot on their DPS before they land it on yours.