From Guild Wars 2 Wiki
- Leeching Venoms — Siphon life from your foe when triggering a venom. This can only occur once per strike. Venom recharges are reduced.
- The venom is still used if an attack is blocked, evaded, obstructed, negated by Blind, or if the target has Invulnerability or Defiance.
- Stone counts as a stun for stun breaker skill purposes, but does not count as a stun for stacking purposes
- This is currently the only skill accessible to players normally that inflicts petrification.