The longest cooldown we have in game right now is Hallowed Ground, with an 8 minute timer. That ability you suggested is no where near as good as Hallowed, which doesn't make sense at all to have a quarter of an hour cooldown.

Enkindle in XIV has a cooldown of only three minutes, lest you forget that this IS NOT FFXI, SE has stated this isn't XI, so I don't know why people keep using that as an argument for some of this stuff

Tell me about Summoner's Titan-Egi provoke, please. I only see two skills is has that say 'Increase enmity'. None of them say ANYTHING about being put at the top of the aggro list, so I don't understand where you're getting any of this. All I know is that the Enkindle for Titan just drops a DoT puddle.

And yes, a bard is a support DPS, but he can't do all the support at once that you're suggesting that Puppetmaster/whatever can do a lot more than just base support. Healing/Tanking/DPSing. It sounds like you want a class that can do everything all at once.

All in all the way you're trying to suggest/explain things just looks like something thrown together kind of quickly.