I'm going to tell my brother to kill himself
That is insane. Why do you have to say that to him?
Yes, he played pranks all the time on me I'm tired of it.
It is wrong to tell family to off themselves. You should confront him and have a real chat so he knows you don't like it you might get an apology.
Why? I want to make him feel the same way he made me feel.
I'm sorry he made you feel that bad, but don't you think it's equally cruel to want him to feel that way too? Aren't you worried that he might actually do something to hurt himself? How about just expressing your feelings instead of trying to hurt him?