[DGDobrev]

Well, the solo Black Knight tactic needs some planning in advance. As a Paladin, you have good access to both might and magic trees, so you need to prioritize the skills.

As a paladin, you don't have the luxury of running around with some rage always available, so Anger 3 is a must asap. My general strategy is to master it quickly anyway, even with a Mage, as that quickly deals with the rage problem.

Black Knights with splinter get the most out of these skills:
- Onslaught (+ initiative for the first round, topped with the rest actually outmatches every other unit in the game)
- Adrenaline (+2 Speed and Initiative is uber)
- Dark Commander (+2 initiative, +7 Attack)
- Frenzy (free + attack, which improves damage)
- Revenge (+20% crit when retaliating is a big deal!)

And is best boosted by:
- Chaos magic (big time resurrections), I wouldn't skip it even if you have resurrection skill at lvl 3
- Distortion magic (stone skin, teleportation and other boosts)
- Resurrection (brings back the fallen BK's you didn't manage to ress with Eviln)

Skills to be left at lvl 1 (unless you have extra runes):
- Order magic (lvl 1 is enough to get transmutation, most order spells do not affect undead, so BK's won't get anything out of them)
- Persuasion (lvl 1 is the prerequisite for resurrection)
- Trophies (lvl 1 is enough even on impossible)
- Nighttime operations (lvl 1 is a prerequisite for both Power of darkness and Revenge, so it's enough)
- Training (lvl 1 equals a +20% pet XP bonus, which is completely enough, when combined with medals)
- Quick draw (lvl 1 is a prerequisite for frenzy)

Skills you should skip (unless you have a ton of extra runes):
- Magic tree - everything from Magic Light and Destroyer below is superfluous. Alchemy is superfluous as well, as this build gets more out of neatness.
- Mind tree - Diplomacy and Voice of the dragon are moot for this build.
- Might tree - Tactics is completely unnecessary

Personal opinion: I'd also swap Moro for Agvares later in the game to take advantage of his versatile slots. If everything's in place, you need 2 artifact slots to combine both undead sets (black helmet + Splinter and Dead Skull + Death Amulet + Hand of Necropolis), and that requires an additional artifact slot.
- that works unless you have 2 (!) Black Helmets available which is completely possible. In that case Moro's better as he has a Helmet slot as well.

So when one's making a good BK strategy with a Paladin, one should go for the important skills first. When you get these skills rounded up, simply add the rest and you will be just fine, steamrolling everything from start to finish.