One thing I’ve not touched upon so far in my rough draft Tiamat’s Throne is religion. I’ve made few hard decisions regarding the topic. For example, I’ve deliberately not added a cleric character class to the setting’s science fantasy. Tiamat’s Throne includes real-world religions since settlers from Terra spread through the stars, colonizing exoplanets and bringing diverse cultures with them. So, in Tiamat’s Throne, one can encounter Christians, Buddhists, Hindus, et cetera. One can also encounter devotees of dragon cults, death-worshipping necromancers, and other fantasy staples.
It seems more prudent to me to say that no religion — not even the one I favor — grants anyone any special powers than to say that only some religions or all religions do. Healing spells have been rolled into the magic-user’s bailiwick. The cleric’s other main feature — special power over the undead — is missing from the setting so far, and it is likely to stay that way.
I am, however, considering modifying the class feature of experts and warriors. As it stands now, the respective class feature of these two classes are as follows:
“Experts have a knack for success, and can re-roll a failed skill check once per hour.”
“Warriors have uncanny luck on the battlefield. Once per fight, they can automatically evade an attack that would otherwise have hit them.”
It might be a good idea to have optional class features that would permit experts and warriors to be more customized, perhaps based on training package. So, for example, there could be a paladin training package for warriors that would permit the character to substitute the standard warrior ability with a paladin ability.