D20:Multiclass Characters Rules


A character may add new classes as he or she progresses in level, thus becoming a multiclass character. The class abilities from a character?s different classes combine to determine a multiclass character?s overall abilities. Multiclassing improves a character?s versatility at the expense of focus.


As a general rule, the abilities of a multiclass character are the sum of the abilities of each of the character?s classes.
Level: ?Character level? is a character?s total number of levels. It is used to determine when feats and ability score boosts are gained.
?Class level? is a character?s level in a particular class. For a character whose levels are all in the same class, character level and class level are the same.
Hit Points: A character gains hit points from each class as his or her class level increases, adding the new hit points to the previous total.
Base Attack Bonus: Add the base attack bonuses acquired for each class to get the character?s base attack bonus. A resulting value of +6 or higher provides the character with multiple attacks.
Saving Throws: Add the base save bonuses for each class together.
Skills: If a skill is a class skill for any of a multiclass character?s classes, then character level determines a skill?s maximum rank. (The maximum rank for a class skill is 3 + character level.)
If a skill is not a class skill for any of a multiclass character?s classes, the maximum rank for that skill is one-half the maximum for a class skill.
Class Features: A multiclass character gets all the class features of all his or her classes but must also suffer the consequences of the special restrictions of all his or her classes. (Exception: A character who acquires the barbarian class does not become illiterate.)
In the special case of turning undead, both clerics and experienced paladins have the same ability. If the character?s paladin level is 4th or higher, her effective turning level is her cleric level plus her paladin level minus 3.
In the special case of uncanny dodge, both experienced barbarians and experienced rogues have the same ability. When a barbarian/rogue would gain uncanny dodge a second time (for her second class), she instead gains improved uncanny dodge, if she does not already have it. Her barbarian and rogue levels stack to determine the rogue level an attacker needs to flank her.
In the special case of obtaining a familiar, both wizards and sorcerers have the same ability. A sorcerer/wizard stacks his sorcerer and wizard levels to determine the familiar?s natural armor, Intelligence score, and special abilities.
Feats: A multiclass character gains feats based on character levels, regardless of individual class level
Ability Increases: A multiclass character gains ability score increases based on character level, regardless of individual class level.
Spells: The character gains spells from all of his or her spellcasting classes and keeps a separate spell list for each class. If a spell?s effect is based on the class level of the caster, the player must keep track of which class?s spell list the character is casting the spell from.

[top]Multiclass Psionic Characters

If you have levels in more than one psionic class, you combine your power points from each class to make up your reserve. You can use these power points to manifest powers from any psionic class you have.
While you maintain a single reserve of power points from your class, race, and feat selections, you are still limited by the manifester level you have achieved with each power you know.

System Reference Document -> Character Classes (SRD)
This article is a D20 reference page
The System Reference Document is a comprehensive toolbox consisting of rules, races, classes, feats, skills, various systems, spells, magic items, and monsters compatible with the d20 System version of Dungeons & Dragons and various other roleplaying games from Wizards of the Coast.

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