Grants additional stealth steps.
Amount: 1 step per level

Additionally, starting with level 5, the stealther can run unseen.
A ran step consumes 2 stealth steps instead of 1.

Increases melee damage when hitting from the shadows.
Damage bonus: 40% per level

Chance to paralyse the victim when attacked out of the stealth:

• Chance: 4% per level
• Duration: 10 seconds

Deals a good amount of extra damage when hitting out of the shadows plus instantly returns into stealth again.
Damage Bonus: 300%