Positive Energy Ball

[Centaur]

If one was to make a new spell called Positive Energy Ball, how would you determine it's effects...?

If you assume it's basic statistics were the same as Fire Ball then the only thing to determine is what it would damage or not damage.

If we assume that the intention was for an area effect attack that could be used against undead without endangering the living the what would be the effect on the living?

We know that Cure wounds spells are basicaly positive energy and inflict wound spells are Based on Negative Energy. We also know that these spells have opposite effects on undead.

So, if the spell delivers 1D6/Lvl to undead, would it also heal a like amount on living creatures caught in the burst. Or should it damage only and not heal. Or maybe it would Do 1D6/2Lvls damage and heal a like amount.

Should the effect varie based on where it is Arcane or Devine?
Should it even be possible for it to be Arcane?

Thoughts? If a character in your game wanted to Create such a spell, how would you determine the results/set the level?

 

[wolff96]

If I was going to make such a spell, I'd go with something similar to Searing Light.

It does a specific amount of damage to regular targets and double that amount to undead. Since we want this to actually HELP living targets, we'll bump it up a bit and lower the range.

I'm tempted to bump this to fifth level, since it provides a source of ranged healing. The only reason I didn't is that the spell only works to it's maximum capability when all the enemy is undead and all the party is living... and that's not a common situation.

So what I would finish with is something like this... a combination of a healing spell and a fireball. And this is off the cuff, so comments from those with more experience is welcome.

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Positive Energy Blast
Conjuration (Healing)
Level: Cleric 4
Components: V, S, DF
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Area: 20-ft.-radius spread
Duration: Instantaneous
Saving Throw: Will half
Spell Resistance: Yes

A positive energy blast spell is an explosion of positive energy that detonates with a blast of white light and deals 1d6 points of damage per caster level (maximum 10d6) to every undead creature within the area. Living creatures in the area are cured for 1d6 points of damage per two caster levels (maximum 5d6). Objects within range of the blast are unaffected.

 

[Staffan]

The spells you want are already in the PHB: Cure ________ Wounds, Mass.

 

[Ferret]

I though to much, read any amount of uncontrolled positive energy, dealt damage. So it would be a searing light-ball.