Hykim and Mikyh are widely considered to be the progenitors of all beasts and the original holders/creators of the beast rune. Them and other greater beings such as Umath, Flamal, and other original gods of the Element and Form runes, while encompassing everything about that rune, are more limited in what they can actually do and thus in the magic they can provide as they exist as primordial forces and ancestors rather than active participants in cultural myths and legends. Since what rune magic a god provides is based on their own actions before time, those who do little give less magic. This is probably better explained in the Xeotam Dialogues though, which are a series of passages by a Ralian sorcerer on the nature of gods, the runes, and ancestry, and is easily found with a Google search.