There are many ways to win fights on any difficulty since this game gives you so many options.
1. Start fights by sneaking to max attack range with one unhooked char while rest of party is behind a rock or otherwise protected . Run unhooked char back to party after initiating battle and watch range enemies run into melee range for slaughter.
2. Start fights by sneaking in and cast summons in the middle of groups. The summons will most likely act as an aggro magnet allowing you party to pwn.
3. Fireball.
4. Have two chars with Teleportation. Sneak both chars with Teleportation as close as possible to boss while rest of party lays in wait. Teleport boss as close to group as possible. Have second char with Teleportation teleport boss to melee for slaughter.
I was able to sneak-kill 4 of the 7 dimatar thugs before engaging the boss.
