Note that Dazarim was created for use with the streamlined Starter set rules, and that Yelmalio does not have Sureshot in the Core rules. Praxian Yelmalion Sable (and Impala) Riders (only) often worship Sun Hawk as part of the Yelmalio cult, who gives Clear Sight (RBM page 28). If using Darzim outside of this set, GMs may wish to replace Sureshot with Clear Sight. Alternatively GMs may state that Sun Hawk gave Darzim Sureshot as a unique spell.
How to Play Ionara: Delete the last sentence in the 5th bullet and the 6th bullet entirely.
Vostor doesn’t have the Fire rune, so how can he cast his SummonFire Elemental (small) spell?
The spell has the Magic rune , so page 39 says: The Magic Runemeans the spell can be cast using any cult Rune. If more than one Rune is listed, the caster may choose which to use. Vostor may use any of the Seven Mother Runes’ to cast the spell.