Wow. You so thoroughly don't understand your own class that it's difficult to take any of your complaints seriously.

- Sacred Prism's (AoE conversion) recast is too long for solo battles
Sacred Prism only affects healing and enhancement spells, causing them to hit your entire party. It has no use in solo battles.

(only using the Fire based spells because they are the only AoE attack magic we have left).
Both Aerora and Stonera are AoE when not used in a combo.