This is my attempt at a str-based, dev-crit, unarmed strike monk with some extra damage. I'm concerned about many facets of this build and could use some help.
I'm worried mainly about it's HP, AC, and lack of blind fight. I could take blind fight or toughness at level 1. Or I could switch to Human, end up with lower str, and get blind fight and toughness, but I'm not sure about these.
I'm also not sure about which rog specialties to take.
Fist O' Death Monk9/Ass10/Rog21 Playable 1 - 40 PvM Alignment: Lawful Evil ~ 300 HP at 40
Race Half-Orc Str 18 Dex 14 Con 12 Wis 14 Int 10 Cha 6
Level Class Feat Ability 1 Monk1 Luck of Heroes 2 Monk2 3 Monk3 Dodge 4 Monk4 Str + 1 5 Monk5 6 Monk6 Mobility 7 Monk7 8 Monk8 Str + 1 9 Assassin1 Weapon Focus: Unarmed Strike 10 Assassin2 11 Assassin3 12 Assassin4 Power Attack Str + 1 13 Assassin5 14 Assassin6 15 Assassin7 Great Cleave 16 Assassin8 Str + 1 17 Assassin9 18 Assassin10 Improved Critical: Unarmed Strike 19 Rogue1 20 Rogue2 Str + 1 21 Rogue3 Epic Weapon Focus: Unarmed Strike 22 Rogue4 23 Rogue5 24 Rogue6 Overwhelming Critical: Unarmed Strike Str + 1 25 Rogue7 26 Rogue8 27 Rogue9 Great Str 1 28 Rogue10 Slippery Mind Str + 1 29 Rogue11 30 Rogue12 Devastating Critical: Unarmed Strike 31 Rogue13 Defensive Roll 32 Rogue14 Str + 1 33 Rogue15 Great Str 2 34 Rogue16 Improved Sneak Attack I 35 Rogue17 36 Rogue18 Epic Prowess Str + 1 37 Rogue19 Improved Sneak Attack II 38 Rogue20 39 Rogue21 Armor Skin 40 Monk9 Str + 1
The thing about Assassin in NWN (aside from its bugginess) is that the DC of the save against Death Attack is based on your class level. The upshot of this is that, against builds like this with less than ~25 levels of Assassin, your opponents will only ever be paralyzed by rolling a 1 on their saves. I don't think a 5% chance on paralysis on the first sneak attack of every fight which hits, unless your opponent wins initiative (or something like that) is worth the 10 levels you've poured into the class.
I'd probably rather go with 4 more Rogue levels (+2d6 sneak damage and a bonus feat, along with some skill points) and 6 levels of fighter, to get you an additional attack and +1 AB, along with EWS for +6 damage. If you have another idea for a 3rd class, though, there are lots of other good options; I just don't think Assassin is one of them in this case.
You could also consider replacing the Rogue levels with Assassin and try to get a Death Attack DC in the 35-40 range, so that it's actually useful.