Re: Lucifer item build
you need dagger or lothar, otherwise it's pretty viable. nothing new tho, dagon doom has been around forever and caster items in general are often very useful on him because he can get them extremely fast.
getting hex/orchid/necro3 before the enemy carry has any real items you can use those items to push really hard. with one hero doomed, one hero silenced or hexed and focused and the carry still not being able to pull his own weight, all you need is some heroes with strong early game ultis (rhasta, zeus, bambi, aa, shaker, lich, anything really) to end the game in 30-35 min. on the other hand, trying to outcarry some medusa with radi/vanguard/curiass/treads when she has linken's/manta might be impossible if her support heroes do their job.
with what i just said in mind and the fact that the new doom doesn't have to instagib targets, he can just chase with scorched earth and kobold aura, getting dagon might be a waste of time. your pub where you solo vs a terribad furion doesn't prove your point that much.
if you just want to stomp pubs, standard treads -> lothar -> scepter -> curiass is your best bet since your allies might just afk farm instead of helping you push/gank and then you are fucked.
still, dagger or lothar is a must in any build because
a) helps land stomps (don't even start about getting the wolf instead of cent because it's retarded to give up a 2 sec aoe stun for a pathetic crit and a lvl 1 command aura).
b) lets you surprise buttsex people with doom. the main doom target will stand back and wait for you to waste doom or get stunned/focused/killed before coming into range (unless he's a retard).