For furion main item is scepter, midas would only delay building it. Also you can rush dagon if farmed well, but if they have heroes with magic resistant like pudge or magina, with high hp like cent, axe its just bad item for him. Another disadvantage for furion is that he is stealing farm from others. So, when in your team are heroes like nevermore, trax, luna you shouldnt farm as much as possible, but you have to gank and help them to get some farm. Dagon would be a good item here if facing low hp oponents, if facing high hp oponentes who cant push, you shall get trees, (amulet of courage would be also nice to gank) and push towers asap, to allow your team get some items. Furion is also good to backdoor, manta style works perfectly if game is too long and your team cant push corectly. But i recommend to get it late.When you are facing strong carrys like void, spectre, magina hex is your item of choice. Orchid is bad because is easy counterable by manta.Examples:Your team: Furion, Crix, Witch Doctor, Shadow Demon, TinyEnemy: Void, Magnus, Lion, Naix, Sven.You have to get scepter asap, and force of nature to push them fast. If game last longer hex is a must. Your team can't farm to much you have to gank and dont allow them to farm.Your team: Furion, Trax, Axe, Windrunner, LichEnemy: Nevermore, Lina, Gondar, Tuskar, Tauren ChiefYou have to gank as much as possible. Stay woods, get dagon and gank gank gank. Snowball would be bad for you. Good lich can handle solo vs 2. If you keep farming, your team will be screwd because they need some farm. When you make sucessfull gank, push with team and get tower. Dagon, treads, Pipe mby be good here.Also fast tip for -em mode. Go mid, max force of nature, push towers in 10 minutes. Get treads, scepter, deso. Finish base before 25.You can ask me about some tips via pm. Or in game: nick ha.ku.