I am currently tinkering with NI, trying to create some custom kits which would spice up my next playtrough. I am currently in the middle of balance phase, so I've carefuly read trough all kits so I can compare to them. The Blackguard struck me as much more generous than other kits in bonus/malus ratio - especially when compared to other paladins. I would like to ask for public opinion about this issue.
Summary of blackguard kit:
+Lay on Hands upgraded to Absorb Health
+ Immunities to fear and level drain
+ Can control undead, like evil clerics
+ Powerful Poison weapon ability, with more uses/day per 5 levels
+ Powerful Aura of Despair ability, with good level progression
+ Can choose from wider range of alignments (CE, NE, LE - Paladin can be only LG)
- No detect Evil
- No protection from Evil (but may cast it as spell eventually).
Note: I am aware that this is singleplayer game and by no means needs super-duper balanced classes. However I still think that there is a line, which if crossed means less fun in the end.