Can someone help me make a cooldown for my attack events?

How do I...?
#1

I’m sure it’s an easy thing to make, but I’ve been so tired lately that I just can’t figure this out…
Here it is:

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(thank you)

#2

you should create a scene timer at the beginning of the scene. than check if the timer’s value greater than the wanted CD, than do the actions, and reset the timer.