I fail to see the point of this new mechanic being introduced. So yes, some abilities can be spammed but is that really a plus? In my opinion, it would have been better to simply reduce their cooldown as the ammo mechanic is more difficult to internalize. Let me explain what I mean by that…
Good combat games aim to replicate what would be appealing in that scenario in real life without the threat of injury or worse. Take something simple like a shooter, it’s eye hand coordination, reflexes, battlefield awareness, etc., which put human being into a heightened state of adrenaline. With experience, game specific mechanics which were foreign at first become second nature and the overall flow of the experience is greatly improved.
My issue with ammo is, like I said, it’s more difficult to internalize. After playing a certain profession for a given amount of time, one develops a sense for its CDs and the overall immersion is better. Ammo, instead, is something that forces me to look at the skillbar more often while adding what exactly? Spammable skills.
I’m not saying it won’t be useful, I’m saying it’s a worse mechanic as far as gameplay and immersion is concerned than the standard CD mechanic. I honestly don’t see the point of this mechanic other than simply having a new mechanic for the sake of having a new mechanic.