More skills:  below is a list of skills (sorted by stat) that might be
fun to add afterwards.  Some of these are active, though, and
therefore require extra client support (skill-specific hotkeys).

STR:
- shield bash (push back monster, dealing light damage, possibly also
  against any monster you may have pushed it against)
- strike (sacrifice to-hit for extra damage, but lower your def for a
  short time)

AGI:
- sneak (aggressive monsters have a harder time spotting you and
  forget you more easily)
- backstab (if a monster is attacking someone else AND that someone
  else is on the other side of the monster, improved to-hit and deal
  extra damage (rate-limited)
- untouchable (extra dodge while not sitting)
- ten ninjas (rate-limited attack during which you move forward,
  attacking each monster you pass, possibly more than once.
  Afterwards, you cannot move and have reduced def for a moment.)

DEX:
- double arrow (fire two arrows at once, reduced firing rate and lower
  to-hit)
- stop attack (nail your opponent's feet to the ground for a brief
  while)
- ...?  (extra damage for ranged weapons)

VIT:
- lay on hands (give own HP to other player)
- protect (draw enemy attacks to self)
- retribution (sacrifice HP for stronger attack with improved to-hit)

INT:
- astral body (improved magic defence)
- astral heart (regenerate mana faster: when introducing this, reduce
  the default regen rate)

(All three astral skills need to be equipped to cast astral level 5
spells)

LUK:
- coin toss (fire a couple of GP as ranged weapons)
- chain reaction (whenever you cause a crit, there is a chance that
  the monster will take a step back onto another monster that will
  then take a crit, too, etc.)
- lucky looter (increase loot chances for monsters you killed
  yourself)



For some of these skills, more NPCs will be needed.  Black Don at one
point made a terrific knight sprite that I highly recommend to
incorporate into this scheme.