Quote:
Originally Posted by awesomenessofme1
Huh? It's not either/or (...)
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I see, that’s OK.
Requiring large amounts of sand (a material) is not the same as requiring an environment (place).
In a few words,
environment talks about places: A city, the desert, in dense vegetation, in a gravity field etc. And, your -20% for “earth”, would qualify for very common; that’s a -5% (the earth). Indeed, touching the ground is -20% (but this still is about being in a certain place).
Besides, anything from a -30% to a -40% is too much. Think about other -30% advantages:
"Emergencies only" is worth -30%, it means you lack control of your advantage. You cannot decide whether it is an emergency or not.
Another example would be "works only in direct sunlight" which is -30%. Sunlight is quite common, but hours of daylight sunlight (HDS) is something else. You roughly have HDS for one third of the day. It means your advantage is off for 2/3 of the day (and you cannot change this, you cannot make the sun provide you with more HDS in a given day).
Compared to these 2 examples, requiring a large amount of sand to make your advantage work is not as significant. You can easily pick places, situations and locations to have your powers work when you need them (e.g. you could drive a truck, loaded with sand). Nothing really deprives you from using the advantage; also, sand is not very hard to find or even expensive.
In other words, “an environment with large amounts of sand” is different than “requiring lots of sand”. If you want the environment limitation, then that would be a -20% for “works in the wasteland” (so to say).
Maybe, the limitation you need is "Requires material component", which is worth -10%. It gets an another -5% if for some reason the material is rare; I could say that requiring large amounts of sand qualifies for this. This would be a -15%.