He Accidentally Invokes A Demon But It Ends Up Giving Him Godlike Power

One day while being attacked, Chang Tian unintentionally invokes an artifact called Xiao Bai that protects him from a terrible fate. After this, he finds himself on a battlefield, where he will fight alongside several other people like him, able to invoke artifacts...

Anime Name: Wo de Ni Tian Shen Qi