From Guild Wars 2 Wiki
“Your next attack turns your foe to stone.
- Stone duration: 1.5 s
- Venom duration: 30 s
— In-game description [?]
- This is the only Venom skill that has a casting time.
- Is affected by the Thief trait Residual Venom, but the Stone duration does not stack.
- Ignores Defiant.
- The number of uses on this skill's effect will decrease if the attack is negated by Blind, Block, Evade, Obstructed, or Invulnerable.