P1 If God Exists he is the only necessary being (you could say a MGB) – Omnipotent (it’s capable of actualizing anything that does not imply a logical contradiction or it’s logically inconceivable), omniscient (knows the whole set of all possible ways and degrees of knowledge of everything there is to be known) and omnibenevolent/morally perfect – and everything else that exists or comes into existence is created, directly or indirectly, contingently to divine will (that must comport, at the same time and for all of his decisions, all of the implications of the former attributes listed above).P2. There is a vast order of other things.C1. If God exists, then there is a vast created order which is contingent upon his will. (from P1 and P2)
Your understanding of evil is lacking, in order to make the point you seek to make. You define evil as a great suffering, but by the standard set in Judaism, and Christianity, you're wrong. This is to say, that your arguing against the idea of the God of Christianity, so your interpretation must be correct in order to disprove that god. Evil, is not suffering intensely by the standards of Christianity. It is acting against the will of god. Knowing the divine good, and acting in direct violation of that good. Evil is not necessary to the existence of God, for He is the perfect moral good. However, in creating a free willed being, that can act in direct opposition of God's Will, you bring by necessity another option to the proverbial table. In this case it is evil. Evil is directly subversive of good. It is it's opposite. So if god allows you to suffer greatly, that is not evil. I would recommend you understand biblical passage, in order to properly form a case against god in the sense of evil's existence.