Squire James
Explorer
Perhaps fiend HD can be doubled for turning purposes, and then it may be more balanced for mid-level priests. An effective turning level of 18 would make a marilith a tough customer, while still keeping the stats for weaker fiends somewhat reasonable.
Another solution to the problem would be to keep the turning ability normal, and simply double the HD of all the fiends! I've always thought a six-armed whirlwind of female demonic death should last more than one round in combat.
If you're feeling especially cruel, figure out a way to give that marilith monk levels (though that "always chaotic evil" thing kinda messes it up in the general case). "Does the marilith have six weapons? No? Run away!"
Another solution to the problem would be to keep the turning ability normal, and simply double the HD of all the fiends! I've always thought a six-armed whirlwind of female demonic death should last more than one round in combat.
If you're feeling especially cruel, figure out a way to give that marilith monk levels (though that "always chaotic evil" thing kinda messes it up in the general case). "Does the marilith have six weapons? No? Run away!"