Why wouldn't I? I have almost all the Illusiat games on my comp and RL3, too.

What I mean by creating the weakest orbs is that spellcasters will be able to use their weakest spells even if they have no money. After, spellcasters are not supposed to be good fighters, so their damage is pretty pitiful except when they cast spells. If they were to cast even the weakest of their spells, they might catch up to Fighters somewhat in dealing damage every turn. And don't forget, making an orb takes up a battle turn...

To make my opinion more clear, say your party's fighter deals 100 damage on each attack. Your spellcasters can deal 250 damage if they use their strongest orb, but when attacking normally (like a fighter) they can only deal 35 damage. However, their weakest orb can also deal 100 damage, but to create it the spellcasters need to use up one battle turn, effectively decreasing the damage to 50 per turn: Still lower than the fighter's 100 damage per turn, but at least higher than their normal attacks. Of course, they can hoard up their weakest orbs during some easy battles, but even then it's just 100 damage per turn, which is exactly the same as the fighter's DPT (damage per turn).