House Rules

CLASSES
Assassins are NOT spellcasting classes in the Mud20 System. Instead they are
granted additional mundane abilities and bonus feats that are more consistent
with their profession.

All casting prestige classes' casting ability is treated as an enhancement to
a base class casting ability. This includes classes like the Blackguard, which
had its own spell list in the D20 SRD. This means that as they progress in
level, instead of having spells in their own class, they, like the Mystic 
Theurge, Loremaster, etc, add levels to their base divine or arcane class'
spell ability. This made things codally simpler, and arguably more balanced.

MULTICLASSING
You cannot multiclass both as a sorcerer and a wizard. 
IC Reason:
The way both practices of arcane magic are managed, it would be impossible for
a person who casts based on intrinsic or intuitive gift to then devote them
selves to dedicated study and perusal, and vice versa.
OOC reason:
This code considers things like taking a level of sorcerer to get around class
limitations like specialist's prohibited schools is metagaming.

If you adopt a prestige class, you may NOT adopt another unless you complete
the one you've already chosen. Likewise, like Monks and Paladins, if you leave
the prestige class you're in, you will not be able to gain any more levels in
it. Yes, this means you could conceivably lock yourself out of ever having more
than one prestige class.

Prestige classes do NOT count toward other prestige classes' prerequisites,
for example, the additional spell ability granted by a Loremaster will not
count to qualify you for another class that requires a minimum caster level of
arcane or divine spells. All the caster levels must come from the base class.

You cannot multiclass between a druid and a cleric.
IC Reason:
You either focus your faith through nature, or the more civilized world. There
are separate sects of priesthood for faiths that have both classes. You would
not, as a priest, cross between those sects.

MAGIC
If you are prohibited as a cleric from casting spells with a certain alignment
descriptor, you are not allowed to learn or cast it in ANY multiclass either.
IC Reason:
Being a cleric is about adhering to the ethos of one's faith. If you can't be
consistent as a whole person in your dedication to that ethos, then you aren't
being a good cleric.

Any divine caster will not be able to cast a spell that requires a divine focus
(holy symbol) unless they have a patron deity. Clerics shall further not be
able to advance beyond the 2nd level as a cleric without a patron.
IC Reason:
They are called divine spells for a reason.