I've dealt 16 dmg to this minion in over 100 attacks.
How do I kill this mob? With magic? I don't have any caster gear, does it mean I have to give up on my nearly finished maze?

He's a sneaky lil devil. Yes, you must cast to dmg it or wear armor pierce as melee.
I'd recommend looking for a caster to help you kill it if you dont want to leave your maze.

Just use a cast charm if you have one, it will deal way more damage than your sword.
It will take time, but not as long as it would with a melee weapon.

Check MP for some cheap ee cast charm, maybe an int item or 2 that are like 1fg or 2.

I've tried with 70 EE lvl 55 ice and all my mana is gone after taking only 0,01% of this shit's hp... Ridiculous

Think of it this way... imagine how much damage your sword does compared to the charm. If you want to increase the damage, buy some crap +int items. Mind you, it will take awhile especially when it spawned at level 69... try to get rid of it earlier in future runs.

But, at the end of the day, you have to ask yourself this question, is it worth my time chipping away at it or should I just ignore it and move on?

I had to reset the catacombs because it would take me days to kill it.
Also, how can I choose to get rid of this sooner in future runs? I thought this is random?

Load up on Armor Pierce and Damage Return.

What? Don't look at me like that.

Soften the Sneaky Shell Level 15+

Basically you have to explore and complete all the other objectives beforehand.
Complete Maze objective, sit there and whistle to level 10, make new cata. You
will notice 3 objectives: Pinch / Bits & Hack, hopefully while exploring this cata,
you can complete all 3 of them, if so, then you need to get Treasure pest as soon
as possible, if you get this before clearing cata, you can either make new game or
clear and make new game... you will notice that (as long as level 15+) you will have
Sneaky in your objective list. The only two(2) you won't be able to do solo is Face and
Shamans.

After Sneaky... Ambush... once you clear that, you will have four corners... this one is
automatically set up in the new cata that you make after ambush.

Hope this helps... it isn't as easy as I stated because you don't always get to clear 3 objectives
in one catacomb.



All info helps.

Thanks!