Taric's heal is still a joke; but I have a solution!
Lower the ABSURD mana cost and slightly reduce the healing power.
This way it becomes a cheap and easy way to trigger Bravado (His passive) and increase his general effectiveness without actually giving him more healing power. 140 mana cost for his heal at rank 5 is a fucking joke, Riot sama... even 60 for rank 1 (20 HP heal with 1 charge, 60 for max charges) is nonsense.
I get that you are balancing this heal around the "Potential" of healing 5 people.... but that only produces a terrible heal for a huge cost in every other scenario.
EDIT: I'm not saying that Taric is bad or that he needs a buff... I'm NOT saying that.... what I am saying , by Riot's own admission he was NOT designed to be a primary healer like Soraka or Nami ...., which is fine that makes perfect sense, but he is saddled with primary healer mana costs for some insane reason and again, this is because POTENTIALLY, his heal can hit 5 people with 3 charges doing a pretty decent team heal.
This is not the case in 99% of casts. Therefore, it is almost always a very weak, very expensive heal for a huge mana cost. I say lower the heal , lower the mana cost and make it an easy way to trigger Bravado.
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or
I typically have enough mana for the rest of the game. Against a poke lane I will get
and
which gives a lot of mana regen to spam abilities freely.
and after suppressing the adc and starving them killing them twice id stand between their outer tower and inner tower and 2v1 the adc and support.
but look we now have fixed attack speed on our passive that now takes 2 hits to do what it did in one hit before
and standard tank. This build is much more practical than it looks.