The gray men. Stocky, gray-skinned human variants with yellow, red or orange eyes and little body hair. +1 str & con, -1 agi & cha. Probably created by a tough, warlike mountain-god.
Variants on humanity are quite common. Many gods want to create wholly new species to serve them, but aren't really capable of it. So they content themselves with making bizarre avatars (since an avatar doesn't have to be capable of surviving without magic and can't breed anyway, it's much easier, you just can't have very many), and minor "tweaks" to existing species.
No one has managed to successfully "tweak" the Lendehar... they're just so optimized for wisdom and knowledge that almost any changes either fail to show up in successive generations or kill them.
The "Lost Realms". There are some realms that have been cut off from the rest of the cosmos for so long that the locals aren't aware of the existence of other realms anymore. They were generally ruled by a single god who exerted a lot of effort to seal them away. Of course, over time that god either went mad or died. Only the ones where the god died or went comatose tend to still be inhabited. The others are regarded as demon-realms, places full of monsters and death.
Occasionally a lost realm will be reached by a random portal, so sometimes you get folks from distant realities stranded elsewhere, often unable to go back home, since random portals don't last long.
A god contains a literal font of mana. This enables them to pull off really impressive magical feats. It also causes them to become physically more impressive over time, with most of their stats slowly rising over time. They also acquire Size points (even if that's not a standard stat anymore), and so become larger and larger over time, even if they don't want to be. The font often gives them a halo effect, especially in darkness.