the best leagues ever were the ones i played with simple builds who dont needs
high tier uniques to work, high tier gear to work, crafted cluster jewels
you need simple builds who use in general 99% of tree to work, nothing special
like detonated dead, cold dot, fire dot
you need witch or templar and maybe ranger, but ranger needs huge invest for most of the builds or you need to know some meta-crafting for crafting own gear for different skill builds