Guild Wars 2

Finisher: 20% staff auto-attack proc, or minions. (See forums for still broken minions)

Combo’s field itself.
Let’s take ‘chillblains’ staff mark for an example as it’s prob most used/shortest CD.

Mark itself – Poison: 6sec

Any ‘projectile finisher’ from other players, (or even 20% chance on auto’attack yourself) will replace your 6sec poison with 2sec! (And there condition kitten ot yours)

Poison stacks in duration (up to 5 times), so don’t worry, your poison won’t get replaced. More likely it’ll get reapplied because the enemy cleansed it right away :p