d20 Base Character Classes

These rules are for compatibility with d20 System as represented in the Basic Rules presented in The ©Players Handbook™.

ONLY Applicable to the i20 Variant

This page contains modifications to the iDnD core classes for using in the Incarna variant. For the most part, players can consider ©Players Handbook as canon – these modifications mostly consist of additional options.

Class choice in Incarna is a role-playing challenge more than anything. While any class is possible in the right situation/background, race, culture, gender, regional issues, and social norms all factor into what path a character is able to take. A full Character Background and Perspective Stories can explain anything, even complete deviation from any setting or rule restrictions. However, it is also these constraining elements that give the most role-play challenge (and reward) and should be encouraged. Multi-classing after character creation has only the limits the story and setting provide (aside from any normal Ability limits).

Common Changes:

LEVEL-UP: Leveling can be done in-game at any time if progressing in an existing class. It does not grant any spells or count as a Rest of any sort. Spells known must be studied after the knowledge is gained - typically a Long Rest in contemplative reflection and self-testing. Multiclassing follows standard Incarna d20 multi-class parameters.


The standard Proficiency Bonus is based on standard Character Advancement;
Non-Proficiency means the operator does not gain a Proficiency Bonus (on physical actions, spell casting, etc.), and cannot gain Advantage except to offset Disadvantage. GM Narration may also factor in offsetting a lack of proficiency and/or familiarity.

Systemic d20 Changes

  1. Starting Equipment and Money: By campaign setting – DO NOT USE THE ©PLAYERS HANDBOOK; See the Steel Realms information for Characters.

Class List/Classes Changes

For ICore corresponding archetypes, see the Support Archetype/Class.