Ok the more I hear about Elric the more he sounds like a 4e casters.
Doesn't cast the same spells twice, doesn't prepare spells, needs spell books for rituals/complex spells, spell casting is taxing on him (that's the justification for encounter powers).
This just sounds SUPER 4e, which is neither Vancian or Pool based.
Except for the part where he essentially doesn't use Daily or encounter spells. Almost all of his spell casting is ritual. Or item and/or general lore based. Mostly he's the guy who carries Stormbringer around :)Those spells that he only uses once are things like "Summon an Elemental King". And it's not doesn't cast the same spell twice in a day or without resting. It's doesn't cast the same spell twice.
He doesn't act like any kind of D&D caster as far as I'm concerned.