Many, but not all, class features continue to accumulate after 20th level. The following guidelines describe how the epic class progressions.
- A character's base save bonuses and base attack bonus don't increase after 20th level. Use Table: Epic Save and Epic Attack Bonuses to determine the character's epic bonus on saving throws and attacks.
- Characters continue to gain Hit Dice and skill points as normal beyond 20th level.
- Generally, any class feature that uses class level as part of a mathematical formula continues to increase using the character's class level in the formula. Any prestige class feature that calculates a save DC using the class level should add only half the character's class levels above 10th.
- For spellcasters, caster level continues to increase after 20th level. However, spells per day don't increase after 20th level. The only way to gain additional spells per day (other than the bonus spells gained from a high ability score) is to select the Improved Spell Capacity epic feat.
- The powers of animal companions, familiars and special mounts continue to increase as their masters gain levels.
- Any class features that increase or accumulate as part of a repeated pattern also continues to increase or accumulate after 20th level at the same rate. An exception to this rule is any bonus feat granted as a class feature. If a character gets bonus feats as part of a class feature, these do not increase with epic levels. Instead, these classes get bonus feats at a different rate (described in each epic class description).
- In addition to the class features retained from nonepic levels, each class gains a bonus feat every two, three, four, or five levels after 20th. This augments each class's progression of class features, because not all classes otherwise improve class features after 20th level. A character must select these feats from the list of bonus feats for that class. These bonus feats are in addition to the feat that every character gets every three levels. The character isn't limited to selecting from the class list when selecting these feats.
- Characters don't gain any new class features, because there aren't any new class features described for these levels. Class features with a progression that slows or stops before 20th level and features that have a limited list of options do not improve as a character gains epic levels. Likewise, class features that are gained only at a single level do not improve.
Adding a Second Class
When a single-class epic character gains a level, he or she may choose to increase the level of his or her current class or pick up a new class at 1st level. The standard rules for multiclass characters still apply, but epic characters must keep in mind the rules for epic advancement. The epic character gains all the 1st-level class skills, weapon proficiency, armor proficiency, spells, and other class features of the new class, as well as a Hit Die of the appropriate type. In addition, the character gets the usual skill points from the new class. Just as with standard multiclassing, adding the second class does not confer some of the benefits for a 1st-level character, including maximum hit points from the first Hit Die, starting equipment or starting gold. An epic character does not gain the base attack bonuses and base save bonuses normally gained when adding a second class. Instead, an epic character uses the epic attack bonus and epic save bonus progression shown on Table: Epic Save and Epic Attack Bonus.