Do the items really help cuz I have a strong item but I could not attack a 1 mill attack player and win
Well yes. But all items relate to raw stats. Whereas the stats you see are worth 5X more. And if they have an item that adds defense, your advantage diminishes.As well as if you used pots or didn't, if they had Dpots or didnt, and finally, their BFA. Bonus from allies. The stats they gain from owning allies effects the odds in a battle.