Ok this build needs coding (just do [ twice then something like Rabadon's Deathcap and then ] twice again) and you always have choices in the build like: if they have much MR take Void Staff, if they have much AP take Abyssal Mask, if needed tankiness take Warmog's Armor etc. and never pick a item with a unique passive twice.

... Look at #6 Do not pick up another deathcap that was all
It isn't a choice if you make the choice ****

No, you're not understanding. You're final build would look like:
Item one) Sorcerer's Shoes
Item two) Deathfire Grasp
Item three) Rabadon's Deathcap
Item four) Void Staff
Item five) Athene's unholy grail
Item six) (THIS IS THE ONE THAT'S A CHOICE) Either another Rabadon's/A Spirit Visage/A Warmog's/Or an Abyssal Sceptre.

Deathfire is in the build, there's no debate whether or not you should pick it up or not. You should DEFINITELY grab it.

Well if your gonna double deathcap or deathfire choose deathfire -.-

Dark, Deathfire is in the build, in fact it's the first major item you should pick up. :o?

Rabadon doubled instead use a Deathfire Grasp lol

Double Rabadon's and AP seals are a bit unnecessary. I'd put a Lich Bane in there instead, and switch the seals for health or armor.

For the guide itself, here are some useful links:
http://www.mobafire.com/league-of-legends/forum/mobafire-support/everything-you-need-to-know-about-guides-22667

Guys, again. I thought I should emphasize:
This is my first guide, and so I won't know BBCode just yet, but I'm working on it. Also, this is just one of many ways to play Taric. I build him all APC Nuke, like I explained. The idea is to let your team help you. You can get the kills, you just need someone to take the damage. You can can 1v2 (especially on Summoner's Rift) and come out on full health if you just know how to hit it out right. But building on this, like I said; the RoA is in there because I've seen some whiney trolls demand APC must take it (it's an early game item, not late). Finally, if you find you're being destroyed too much, build more heavily and play more defensively. No mid APC should be expected to tank, or engage - that's as simple as it gets when it comes to LoL. Which is a TEAM game. But thank you anyways. :3

Getting ROA an Item that takes time to build up as a last item? -1

roa as last item, masteries 22-0-8, roa as last item, 2nd rabadons optional, runes are just dafuq and all that coding stuff -1

^^^

Yeah no BBCode....It's not just putting in pictures, it's separating your guide into basic points and detailed points. It's making the guide LOOK nicer and hopefully making it READ nicer. Add that coding and maybe you got something.

Clearly, you lack the will of the warrior.