Re: Best D&D original monsters out there?
Flumph, ..., only kidding.
Worms of Kyuss - so innocuous and harmless, until they kill you.
π = 4
Consider a 5' radius blast: this affects 4 squares which have a circumference of 40' — Actually it's worse than that.
Completely Dysfunctional Handbook
Tomb of Battle
: Fighter, Monk, Samurai, Blade Dancer, Knight, Swashbuckler and Ninja.