Evasion:If attacked with an area attack you take half damage if it hits you, you take none if it misses you.
Improved Stealth: You may choose to reroll any stealth check, but you must take the second roll even if it's worse.
Acute senses: You may choose to reroll any perception check, but you must take the second roll, even if it's worse.
Keen Shot: you take no penalty on attack rolls against enemies with concealment (except total)
Hidden movement:You take no stealth penalty when moving full speed.
