Mantras and tantras, when applied for positively helps you...

But when used negatively for hurting other, these become black magic mantras and tantras. 

Here the intent makes you reap what. 

All the mantras used positively, will help you from your troubles, and when used for selfish deeds of hurting others, it will definitely ruin you making you unfit to live. 

So kindly use these for better purpose and get benefitted by these. 

You never get this input from any, 

Every mantra has a positive and great energy associated with it, when applied positively. 

You are creator of your life and killer of life too. 

Make sure you clean your heart and brain for the betterment instead of ruining your ownself.