Alternative Magic System
I've developed an alternative magic system that improves wizards spellcasting. You can use it to make reasonable modifications to existing spells.
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Any spell may be cast as a higher level spell to gain a +1 bonus to any die or modification.
So, a 1st level magic missile, cast as a 9th level spell could gain an extra +9 points of damage.
A fireball could do an extra +9 points of damage, or have a +9 penalty to an opponents save. Or, +4 points of damage and +5 pentalty to save, etc.
, etc.
Duration can also be extended. Where the standard unit is in minutes, its an extra 9 minutes for a 9th 1st level spell. Where the standard spell duration is a multiple of hours, its an extra hour. It's the dm's call when it comes to duration modification.
Extrapolate from there.
This makes it reasonable for a wizard to memorise/cast more lower level spells giving additional flexability.
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An additional ruling: any higher level memorised spell can be junked and used as a standard lower level spell that you have memorised.
So, you might have delayed blast fireball, but NEED teleport. You've got teleport already memorised, but you know you need to use teleport twice, so u junk the higher level spell and use that slot to cast teleport. If you had already used your lower level teleport spell, well, sorry.
Note: Using delayed blast fireball to cast magic missle is different to memorising a 7th level magic missile spell which gets +7 points to distribute.
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If, by any chance, I manage to get thru to a l8r round in the settings search, . . . i'll hope to put that magic ruling in there.
Simple and effective. Doesnt play havoc with the spell memorisation and gives the flexability of a spell "point" system.
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I may or may-not require the wizard to have a Spell Mastery meta-magic feat before one might be able to do such meta modifications to their spells.
-Tim