Saturday Spell-Encourage Rain

Due to a confluence of factors: 1)I want to make spells that express new concepts, are generally useful, and don’t overlap and 2) I want a spell that fits the Midgeland and that Burg Broadbrow might use, I am doing this spell without being very well prepared for it.

You see, the Mind Weave finished system is going to include probabilistic weather models with a number of condition parameters to determine weather patterns.  Magic meant to effect the weather (not just create artificial weather bursts) simply changes these parameters (temperature, atmospheric moisture, etc) to encourage certain types of weather.

Since I haven’t actually worked out this weather model yet, I can’t say exactly how much this simple approach of increasing atmospheric moisture will increase the chance of rain.  It is likely that cooling the atmosphere will be a more effective approach (that’s what we do in real life).  However, I think I can give a basic description of the likely outcome.

Right Hand:

Neta (Nature Radius): Water (Full)

EncourageRainVi (Water Arc): Water (Half)

Vi (Water Arc): Water (Full)

Vi (Water Arc): Water (Half)

Vi (Water Arc): Water (Full)

Vi (Water Arc): Water (Half)

Vi (Water Arc): Water (Full)

Vi (Water Arc): Water (Half)

Vi (Water Arc): Water (Full)

Neta (Nature Radius): Water (Half)

saying “on ru loa”

Now that’s a lot of water at 2*(18d6+10d3+5) cubic feet.  The probability is tightly distributed around the average at 176 cubic feet of water.  This is 1316.57 gallons, which sounds like a lot, but if you want that water to fall in the form of an inch of rain, it’s only enough to rain on half an acre.  Ouch.

There are a few ways to get more water.  You can use a greater power syllable, but that is inefficient in terms of SP cost.  You can use more arcs and fingers, which is the most SP efficient method, as long as the caster has enough constitution and is well-rested enough to cast the spell without much risk of spell failure due to exhaustion.  The method I recommend is to repeatedly cast a spell like this that is fairly efficient, but has a low risk factor.

Now to talk about the results.  This spell is not simply creating a rain storm, it is infusing the atmosphere with water to encourage rain.  This means that the result is highly dependent on current conditions.  If it is currently raining, then it increases the chance of the rain getting harder and lasting longer.  This may mean that more rain falls as a result of the spell than the 176 added cubic feet of water.  However, if it is really dry, then you might not get any rain at all.  If the weather is at a moisture equilibrium where it might start raining any moment, then the fallen rain is likely to be about the amount of water put into the atmosphere, so on average, you get what you pay for.

The spell would have a cost of 232 SP.  The casting time is 13.33 seconds for a caster with no agility and 15 dexterity.  This is hardly important since the spell is meant to be cast without urgency.  In urgent situations, an artificial, isolated rain storm is more effective.

This spell is meant to cover tracks when being followed by trackers.  Opposite results could be obtained with a water reduction spell for trackers wanting a fresh trail.

Would you play a weather mage?  What kinds of spells would you want to cast?  Suggest them below and we might get to it on a later Saturday.

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2 Responses to Saturday Spell-Encourage Rain

  1. Pingback: Character Thursday-Shilin “The Serpent’s Fang” Wesliniss (Lizardfolk Necromancer) | Mind Weave Role-Playing Platform

  2. Pingback: Why Weather Algorithms in Mind Weave | Mind Weave Role-Playing Platform

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