in reaper of souls, loot 2.0 system requires players to farm awesome equipment or craft powerful items by themselves. and items in the new expansion get a 70 level up, some of which even need special materials that drop from specific monsters. in this way players have to farm legendary crafting materials at specified places. here we collected the information of places to farm some legendary crafting materials. if you have more messages, welcome to share with us.
note that the icon is temporary. the specific materials in the table will not share the same icon when reaper of souls released. blizzard will complete more details of them in the future.
you may have interests in decaying crypt leveling up video by barbarian below: