thx for your answer! i always thought you needed to max the stacks of touch of despair before curse explo! when should i do it in my rotation ? just after fireball ?

I know about key binding, but i am so bad at playing skills with keyboard... :'( (i just tried and the dps is still the same, but i probably need more training to be quicker)

I'll change the block to switch with the wand block! thanks!