Are あなた Prepared For This?? :3

Oki, Heres a riddle, who every guesses it right I will Give u 20 リスペクト and I will ファン u, If Im not a ファン of u already(:

Heres the riddle:

I make あなた weak at the worst of all times. I keep あなた safe, I keep あなた fine. I make your hands sweat, and your ハート, 心 grow cold, I visit the weak, but seldom the bold. What am I?



Good Luck xD