Aura tank Taric is ridiculous.
I had a team that was Jax, Akali, Eve, Corki and me on Taric. Pretty much all hybrids. I had a Locket, Frozen Heart, Abyssal Scepter, Ruby Sightstone, and Giant's Belt. I haven't done the math to figure out the aura value to teammates, but with the ult it's like 35 AP/AD, 20 MR, 25 armor, (essentially) 20 magic pen, (essentially) 35 armor pen, and I'm an unkillable stun-dispensing tank that actually doesn't do awful damage.
Press R, give your team ~12,000 free gold.
Freelo shouldn't be in a sentence without Taric.