SF need to be mid or if line alone
GG branches and some heal - tangos, potion
then he brings ( if not noob team and didnt buy chick even you can effort with this build chick) bottle to rune whore then PT and wand, maybe one wraith band, then dagger if hard magic casters and stunners BKB and then yasha to manta or yasha BKB and then manta then and if hard to farm dagger BKB and then dagger
rest is up to you and the match butterfly, MKB, buryza, EB, or life steal

skill build first soul steal to dmg for last hit and deny for more dmg and ulty then 2,3 nuke, again soul steal and nuke max. at 6 skip ulty cause you got not fulled souls and maxed soul skill keep it till 9 or 10 cause you still farm and lvl fast on mid alone

and after nuke max. soul steal and at 10 lvl take stats rather then minus armor aura, and then take stats also rather then presence, cause of stats that SF needs to survive and kill, one xeception to take them earlier instead of stats is a lot of nukers and spell casters that got low armor or stacks with other minus armor ability or item

in game use nukes try to learn them dont skipp it and max it, it cool nuke that can do almost 750 dmg on running or staying hero if cast properly

after id game nukes are passe and come s your raw dmg attack and ulty

I hope I described this clearly
still there was a lot of topics about SF try to use search button to find it and you will read same stuff that all ppl reply here
