Minor Update on Distractors

Hey all, some small edits have been made throughout to ensure distractors do not become overpowered. Some theif archtypes either cannot use them or have a very limited supply. In toxic areas only the alchemist can use distractors reliably. Furthermore some guards have partial immunity to distractors now, and beasts are generally immune.

The idea is for distractors to be most valuable when facing swarms of enemies. When facing one powerful enemy cold steel may be more effective.