Please share your various monster killing tips and tricks here. Yes you can certainly release a mess of Death Scorpions and safely take out anything on the map. And yes we can all successfully defeat the enemies in DD without too much trouble, but you may want to face off against enemies beyond your level, or maybe some ways are just easier, more fun, or more satisfying than others. And maybe we'll all learn something. Tips can be as general or as specific as you like.
Beetles, Orcs, animals (except Snake and toad types) many "demonic" creatures and most humans can't tolerate Poison Weapon attacks very well. Even minor poison can have a huge impact.
Just a quick note on the poison weapon skill that took me awhile to figure out...if you poison a melee weapon, the enemy will not be poisoned unless you score a hit, so if you're facing something that has a much higher agility, this can be a problem. However when you poison a bow/crossbow, it appears to ignore whether or not you score an actual "hit", and poisons the creature simply if the arrow contacts the enemy. Helpful if facing something you'd normally only score a hit on rarely. Also helpful if you want to conserve your poison charges, sometimes a sword or mace etc hits the enemy twice in a row before you can move away, effectively wasting the 2nd poison dose. But with an arrow, you can shoot and move. If you're really trying to conserve, a crossbow is helpful because it shoots slower. And somehow, poison charges don't go down if your arrow misses altogether, so if you miss, it's all good. For hard to take down enemies, unload more than one arrow in 'em, the poison adds up. For bosses, unload on 'em.
For skeletons and various other undead, burning wall is fun and effective. Especially when it lasts a little longer. Especially effective in confined areas/hallways/doorways where they can't go around it. I was having fun once taking out Insane Skellys and Special Insanes with this tactic, at a relatively low level. For bosses that can't stand lightning, with some practice, you can box them in on three sides, and they just fry. Effective and satisfying.
Ok I think that's all I have for now. Please share your own tips