I'd say you've been lucky.
*I* think that vanilla Tarnesh is very hard, but that's my opinion. Others share it, but opinions will always differ. One of the reasons I say T is so hard is because in vanilla he has multiple magic missile spells that cause 6-15 dmg per casting. That's enough to kill any of your companions, and most any PC, in one shot. He also has several area affect spells that can disable much of your party. Imagine watching your whole party being incapacitated with a spell, and then watching helplessly as he picks everybody off one by one with MM.
Tarnesh has been modified several times in different mods, so I don't know offhand what he's like in your setup. He may be easier, or he may be difficult and you got lucky. Luck happens. Keep playing and get better acquainted with the game and the RNG. You've barely scratched the surface of game content and you have a LOT more combats to go. I hope you continue to find your victories so easy. : )
You're misreading the image. Xzar is standing over the remains and the man next to him is the PC, not a guard. Green circle. Two guards are down to the southeast. I don't see any guard remains near the party, so I don't think they helped.
Thanks for the reply. So you would guess that I haven't 'broken' the game in some way? I mean, I have reloaded that fight and tried starting the fight but letting him attack me, and he does hit very hard. However, if I keep reloading it and trying, most of the time he dies before he can even get a hit off on me.
I would like to quickly add one thing (My PC stats) just to make sure that I'm not playing the game as some overpowered monster hero. I really want to experience the game, and I'd hate to put in 50 hours and then realise that I've been playing the game on 'super easy' mode.
All I've bought are some normal armour items from the inn, and a long sword, so nothing peculiar there!
EDIT: Tried once more for posterity, the guard got a critical hit and he died almost instantaneously again. Apparently my guards graduated from a different academy yours BlueMooner!! I'm wondering if I have inadvertently installed a mod that changes the guards....
I apologise for spamming this thread a bit!!