Quote Originally Posted by TatoRazzino View Post
Now, if you consider the Arrow card, which does 10% attack speed for 15s ... scales down when the target already has much speed (NIN and MNK).
Just wanted to do a small correction to this. Haste is one of those effects that actually scale higher the more you stack of it. Consider the following:

Base attack speed is 100s (for the sake of easy math)

Huton from Ninja increases attack speed by 15%. In this case, it shaves 15s off your base attack speed.

100 / 85 = 1.176 or a 17.6% increase in how fast a Ninja attacks.

Now, let's consider adding Arrow to that. I believe similar effects are additive, therefore total attack speed reduction is 25% (25s in this case).

Increased from base speed = 100 / 75 = 1.333 = 33.3% increase in attack speed.
Increased from Ninja's normal w/ Huton = 85/75 = 1.133 = 13.3% increase in attack speed.

So, barring TP constraints due to just attacking way too fast (which can be fixed with a Spire later), it's better to put Arrow on jobs that have native attack speed boosts to give them even more power with it.