Do you believe that the Devil is all to do with the mind , to destroy the mind [Spirituality & Religion]

He does play mind games but he wants your soul

i think the devil is a made up concept.

No I don't believe that, not when it's based on superstitious lies. There's a few loopholes regarding the devil, for instance God killed millions but it's justified as "righteous murder" verses unrighteous so you'll excuse me if I don't believe you.