Spells: AoE spells will not kill mobs.

[Haynar]

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August 26, 2003
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- AE Rain Spells were resisted 100% of the time when an NPC was above
level 20 and had less than 10% of its hit points left. This will no
longer happen.

Not coded exactly that way, but the intent is similar. Might need to be tweaked a bit.

H