Update rage of the skies.lua

Like this formula : http://tibia.wikia.com/wiki/Formula
I'll send others spells !
Update eternal winter.lua

Like this formula : http://tibia.wikia.com/wiki/Formula
I'll send the others spells
Update wrath of nature.lua

Like this formula : http://tibia.wikia.com/wiki/Formula
I'll send the others spells
Merge pull request #411 from jpmagg/patch-5

Update wrath of nature.lua
Merge pull request #410 from jpmagg/patch-4

Update eternal winter.lua
Merge pull request #409 from jpmagg/patch-3

Update rage of the skies.lua
Monsters up
correcting mistake/typo
Merge pull request #428 from ninjahopparn/master

correcting mistake/typo
Merge pull request #423 from comedinha/master

Monsters up