IcyCool
First Post
If you aren't willing or able to consider a magical option, then yeah, suffocation is your option. That's not too bad and option, to be sure.
If you are still willing to consider magic, here are a couple of ideas:
1. Transport the war trolls to another plane. I'm fairly certain that the voidmind connection doesn't cross planes.
2. Ambush and turn the war trolls into stone. Then set your ambush up and wait for either more trolls to show up (which you then turn to stone), or the mindflayers themselves (which you then whack into oblivion).
3. Work your way to the mindflayers, and then use battelfield control spells to keep the war trolls at bay while you splat the mindflayers.
If you are still willing to consider magic, here are a couple of ideas:
1. Transport the war trolls to another plane. I'm fairly certain that the voidmind connection doesn't cross planes.
2. Ambush and turn the war trolls into stone. Then set your ambush up and wait for either more trolls to show up (which you then turn to stone), or the mindflayers themselves (which you then whack into oblivion).
3. Work your way to the mindflayers, and then use battelfield control spells to keep the war trolls at bay while you splat the mindflayers.