The Edge of Twilight

When gaining a threat you can do one of many things without provoking an attack of opportunity:

1) Try to do a Critical roll to hit again to do the damage multiplier of your weapon

2) Try to Knock an opponent prone (only if they are 1 size larger, the same size or smaller) opponent gets an opposing roll vs. balance

3) Try to Disarm an opponent opponent gets an opposing roll vs. reflex

4) Try to Push an opponent opponent gets an opposing roll vs. strength

5) Try to Stun an opponent for 1 round opponent gets to opposing roll vs. will

2 successful back to back Stun hits knock an opponent
out (knocking an opponent out can only be done on a 
creature 2 sizes larger, the same size or smaller)

6) Gain an automatic Grapple position (only if they are 1 size larger, the same size or smaller). This may only be done if a character is fighting unarmed

7) Breach – Do damage vs. creatures only harmed by magical weapons.

(Note: Some of these threats can only be done in melee combat. Use judgement on whether or not a particular threat can apply to missile or thrown weapons).