Changeling revisions

Created by: icantthinkofanameritenow

Modifies some changeling power costs and adds the Arm Blade power by popular demand.I'm planning that this will encourage more aggressive play for lings and easier use of horror form.

-Horror form cost is halved. -Death Sting is now 8 points, and injects 20 units of Cyanide instead of 40 units of Lexorin. This will make it more obviously lethal, but since cyanide appears rarely an advanced mass-spectrometer will make it easy to deduce the cause of death as a changeling sting. -DNA extract sting is now 3 points.