Ok, here is what I have come up with for a crafted spell improvement on Prismatic Spray, combining it with Magic Missile. First, Prismatic Sphere and Prismatic Wall are Abjuration not Evocation so they really have no bearing on an offensive missile version of the Prismatic Spray spell.
Ok, so the basic idea here is to blend the concepts into a single spell effect, utilizing the best of both concepts. Basic Comparison:
Similarities to both spells: Evocation, VS components, Multiple Targets, Instant Duration, SR Applies
The strong points of Magic Missile: Medium Range, No save (auto hit)
The strong points of Prismatic Spray: Effects
My basic feeling for what to do as a combination would be as follows. However, a major choice that needs to be made is the base effect of the missile: Force Damage as per MM, or Blindness as per PS, both, or a random determination between the two. What I have done is altered the table for Prismatic Spray to include the MM Force damage effect as one of the possible effects, so that the spell itself doesn’t need to gain the [FORCE] subtype, yet keeps the flavor of both spells. Another major factor is the Automatic Hit. It IS the prime effect of Magic Missile so I will try to keep that benefit as well. Although we have to remove the ability to be struck by multiple colors per missile as you can strike one target with multiple missiles already and this would just insanely compound the effects hitting a single target. Currently as I have created it you can hit 1 target with up to 5 effects verses the best of Spray having been 2.
We also have to compare Range. (At 13th level when Spray is attained)
Spray = Close Range + Cone: 25’+5/2 levels (minimum 55’) + 60’ cone = 115’
MM = Medium Range (100’+10’/lv) = 230’
Considering the power of the spell’s effect, we need to balance range to balance the spell, as 230’ range for the power of the spell is a bit much.
Another issue is the scaling of the spell. You never want a scalable spell to be at maximum power when first gained, so we have to increase the spread that new missiles are gain.
Not sure if this should be 8th or 9th, but went on the lower side as a minor improvement to Spray and went 8th.
Prismatic Missile
Evocation
Level: Sorcerer/Wizard 8
Components: VS
Range: Close (25’ + 5/2 levels)
Target: Up to 5 creatures (15’ apart)
Duration: Instant
Save: Special
SR: Yes
This spell creates a shimmering, intertwined, multicolored magical dart of light that shoots forth from the caster’s fingertip to strike its target. Each of the seven shimmering colors of the missile has a different power. The missile strikes unerringly, even if the target is in melee or has anything less than total cover or concealment. Specific parts of a creature cannot be targeted, nor can inanimate objects be damaged by this spell.
For every four levels of experience past 1st, you gain an additional missile. You have two at 5th, three at 9th, four at 13th, and five at 17th or higher. If you shoot multiple missiles, you can have them strike a single target or several targets as long as each target is within 15’ of the last target. A single missile can strike only a single target. You must designate targets before you roll for SR or effects of the missiles.
Creatures struck by a Prismatic Missile with 8HD or less are automatically blinded (see Blindness/Deafness spell) for 2d4 rounds. All creatures struck by one or more missiles are randomly struck by a secondary effect of the Prismatic Missile by each missile that they are sturck by.
D8…..Color……….Effect
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1…….Red…………20 points of fire damage (Reflex half)
2…….Orange……..40 points of acid damage (Reflex half)
3…….Yellow……..80 points of electricity damage (Reflex half)
4…….Green………Poison (Fortitude: Death or 20 points of damage)
5…….Blue………..Turned to Stone (Fortitude negates)
6…….Indigo………Insanity Spell (Will negates)
7…….Violet………Plane Shift (Will negates)
8…….White………25 points of force damage (No save)
PS: If anyone wants to quick tutor me on how to vB a table into this it would be greatly appreciated.