Ranger’s trait Keen edge(Maskmanship III)
when use with Wilderness Knowledge.(Wilderness Survival VI)
Sharpening Stone dont come out when enemy’hp 75%
but come when 55%.
Next about Sic’em
Mesmer still can stealth by using decoy while being revealed.
(Auto Decoy from trait Dueling V too)
Already tested in pvp. And saw by myself in wvw.