Dragon Age Origins (Nightmare) - Ep081 - Proving Armsman - Arena 4

I am playing DAO in nightmare mode and just recorded some of the fights. Most of them are easy even on nightmare but it gets challenging if (i) ONLY skills can be used and NO potions etc are used (ii) no running around in loops (iii) you need to engage as many enemies as possible, not few enemies at a time (iv) try to take all of them head-on wherever possible. (v) no DLC equipment that are given at start of game can be equipped (vi) all party members should be alive (extremely challenging till you get a healer)