User blog comment:CCoville/Tips on Singed, Shaco, Twitch, Taric, Karthus?/@comment-3140234-20110223180931/@comment-3140234-20110224173135

I believe the key to success with Taric as a DPS lies in the amount of damage that you deal in a very literal way - because if you deal enough damage, you leech enough mana back to keep your ultimate running during fighting without losing much mana and you will get the nonstop benefits like constant selfheals and higher damage (which in return helps leech even more mana).

I think Manamune, Mercurys, Starks and Nashors should provide a really good basis for this. Your Shatter gives enough armor, Mercurys help against magic damage and the rest synergizes nicely.