There are some combinations of Map Affixes that are guaranteed to give me trouble. And that for a variety of reasons once those particular maps have been opened. Now, the general problem isn’t my survivability. For the most part, I’ve got a build that can handle almost everything that’s thrown at it. There are exceptions of some combinations of map affixes and mob affixes applied to epic+ (and some rare) enemies where my survival is dependent upon not getting damaged ever–meaning I receive a OHKO or very close to it. Otherwise, it’s smooth-ish sailing.
The difficulty lies in my being unable to deliver sustained damage to one target to overcome the health regeneration. I’ve been in a fight with an epic mob horde (the +x% epic enemy on a map) that took somewhere between 15 and 20 minutes, a couple million gold spent for restats, seven or eight different pieces of armor (and a dozen different weapons) for different build setups, where I ended up just getting a new map. While I had enough health regen to stay alive, going against that particular group I didn’t have enough damage output to counter the regen of the individual mobs.
In scenarios like that I’m generally dependent on the Storm effect triggering enough times consecutively. Going against an epic mob with extra health and the map’s health regen makes for an even more frustrating stalemate. And that because I watch the health bar not change at all.
Pistols only hit the first mob, and while there is a chance of ricochet to another enemy, there’s no telling which enemy will get hit. With an epic horde swarming all over each other, it’s impossible to hit the same target. Especially with the game changing the target as the horde whirls and writhes. The bow and arrow suffers a similar problem; while it does penetrate, it only goes to the last mob in the line, and then repeatedly hits that one. Meanwhile, the others are only getting hit once, if at all, while the rest are regenerating. The chakram are my preferred weapon of choice. But with any horde, the direction of the attack is rarely the optimal one. It’s usually the first or second one that gets the brunt of the attack, which can be anywhere along the arc that consists of the multiple center points of the different mobs. An attack will go to a guy above the horde, then on the next attack throwing the chakram at an enemy nibbling on the player’s elbow.
I don’t have much experience with daggers, partly because I’ve learned not to remain in close proximity of mobs (due to dieing rapidly) and partly because I tend to find a significantly larger quantity of legendary not-dagger rogue equipment.
I’ve got an epic map, Legend difficulty for floor 211, with this:
+2 enemy bolt
+336.2% rare enemies
+54.2% enemy HP
+1 enemy affix
+1.5% enemy heal
+1% epic enemies
With my current gear (equipped and in storage), defeating the Cartographer is likely impossible. The only condition I will be able to defeat any of the epic mobs at the floor gate is to take them on one at a time. Which, again depending on affixes, may not be possible. I know that to be the case because I’ve had half a dozen maps where I’ve crashed into the stalemate. Heck, even a rare enemy with the “Extra Health” affix on that map is going to be a long and boring fight.