Jarron7
He can also make bombs, or dynamite to power himself up. Or buy them at the demolition. He can also explore the crimson or the corruption to break the orbs to get weapon. The weapon dropping from the orb/heart can also be explained as mediums used to seal the boss or something. Just be careful not to break 3 of them.... Is it three or two? I just played terraria a couple hours ago but I think it was three at the first, and two after that? Anyway