You mean remove the stun effect?
Go to the Object Editor, go to the Abilities tab, check out 'Level 1/2/3 - Stats - Buffs', and remove the Stun effect.
This was a question you could've easily answered yourself if you would've just looked. If you didn't even knew where to change abilities, you should check out every aspect of the World Editor and make a test map where you check out every possibility of it before even starting with making your own map.