I can see you like the ghosts by looking at your avatar

Amdusias... that nasty bastard ranger! I didn't know about Hide in Shadows back then otherwise I would've tried using it. After too many deaths by his explosive arrows I managed to distract him (with the first summon) and went for his throat

I learned then that the ranger, unlike in most other games, is still able to use the bow from up close. I didn't know yet how to summon my creature, if you believe that...
Xantosh on Stone's Flying Fortress was another annoying bastard ranger. He would kill me with a sequence of two quick homing attacks that the only way to avoid was to kite him on the outside of his castle walls. It was a long process involving many saves. I knew how to bring the creature to aid me and on the good loads it took most of the abuse

There is a save/load/teleport bug: after load or teleport, the enemies lose their targeting and start walking slowly back to their "home" point. If their range is lower than yours and you have Ranger Stealth, it is possible to kill them while they're walking back. Xantosh is not that stupid though, that bastard is clever.
I discovered this bug on accident when the slayers confronted me at Maxos' Temple. They were going to kill me so I ran for potions to the teleport. When I came back I saw them walking towards their "spawn point" and attacked them. They just took it and died... well... I didn't have a save at hand to reload and kill them properly. Also I'm a cowardly ranger so... :P