How does Taric's Bastion work for the purpose of a solo lane?
So, my main problem with the Taric rework is the loss of Shatter. I like the double-tap iteration of the passive, I have a kind of "take it or leave it" feeling on the change to his heal, I really like the new Dazzle, and the new ultimate is really cool even if timing-reliant. But the loss of Shatter hurts me, because I like to play Taric top since there's so many other support options. It's his waveclear, it's what allows him to duel people, it's his everything. Dazzle can't be strong enough in damage to replace that, or it becomes way too good with the stun added in. It'll probably be around the same damage as old Dazzle.
So this is my thinking. Taric's best hope at successful top lane is by abusing his passive and just smacking the enemy a lot. So, here is my question:
What is the internal cooldown (if any) of Taric's passive, and can Taric use Bastion on himself (even if no allies are around) for the shield and the passive proc?