bonus3 bAutoSpell,n,x,y; Auto Spell casting on attack of spell n at level x with y/10%
                                        chance. Skill is casted on target unless it is a self or support
                                        (inf = 4/16) skill.

bonus4 bAutoSpell,x,y,n,i; n/10% chance to cast skill x of level y when
being attacking
i: 1=cast on enemy, not on self
   2=use random skill lv in [1..y]
   3=1+2 (random lv on enemy)

bonus5 bAutoSpell,x,y,n,t,i; n/10% chance to cast skill x of level y when
attacking
i: 1=cast on enemy, not on self
   2=use random skill lv in [1..y]
   3=1+2 (random lv on enemy)
t: Trigger criteria:
   BF_SHORT: Trigger on melee attack
   BF_LONG: Trigger on ranged attack
   (When neither is specified,
   then BF_SHORT+BF_LONG is used.
   BF_WEAPON: Trigger on weapon skills
   BF_MAGIC: Trigger on magic skills
   BF_MISC: Trigger on misc skills
   (If none is specified, BF_WEAPON is
   used)
   BF_NORMAL: Trigger on normal
   attacks.
   BF_SKILL: Trigger on skills
   (When neither is specified,
   BF_SKILL is used if the type is
   BF_MISC or BF_MAGIC. BF_NORMAL is
   used if the type is BF_WEAPON)

bonus3 bAutoSpellWhenHit,x,y,n; n/10% chance to cast skill x of level y on
attacker (unless it is a self or support skill) when being hit by a
direct attack. Target must be within spell's range to go off.

bonus4 bAutoSpellWhenHit,x,y,n,i; n/10% chance to cast skill x of level y when
being hit by a direct attack. Target
must be within spell's range to go
off.
i: 1=cast on enemy, not on self
   2=use random skill lv in [1..y]
   3=1+2 (random lv on enemy)

bonus5 bAutoSpellWhenHit,x,y,n,t,i; n/10% chance to cast skill x of level y when
being hit by a direct attack. Target
must be within spell's range to go
off.
i: 1=cast on enemy, not on self
   2=use random skill lv in [1..y]
   3=1+2 (random lv on enemy)
t: Trigger criteria (see bonus5
   bAutoSpell)

skill i,n; Gives skill #i at level n