What is the meaning of the letter associated with Verso's skills?

[Fanta]

When browsing Verso's skills I see they all have a letter associated, the same associated also with weapons (A, ... , S). For instance, "Assault Zero" has a B and the indication of "Increased damage". What is the meaning of this? How do I get the increased damage?

[Frantz Ziger Van Forsberg]

It's indicator that skill will get additional buff if you are at said rank or higher.
Reaching S rank, means all of the additional buffs trigger plus more damage as Verso at S rank deals up to +200% additional damage.

[Left-Hand Path]

Versos unique passive, perfection.

You start on Rank D (sometimes higher, depending on the weapon).

As you gain perfection points, your Rank will increase. When you hit the appropiate Rank, the skill will do its bonus (like inreased damage, reduced cost, etc.).

You have to be on that excact rank to get it, you wont get the bonus if you are higher.

[Sharkinbear]

Best way to think of his letters is like Dante from DMC. The better he is at attacking and defending against attacks, the stronger and better his attacks become. Take hits or die and your ranking goes back down.

[Adun]

Originally posted by Sharkinbear:

Best way to think of his letters is like Dante from DMC. The better he is at attacking and defending against attacks, the stronger and better his attacks become. Take hits or die and your ranking goes back down.

I think that is the most useless explanation ever :D

@OP, the letters are pretty much indicators of power levels. S is best (for whatever reason), then A, B, C, D.

[ForceKin]

Originally posted by Frantz Ziger Van Forsberg:

It's indicator that skill will get additional buff if you are at said rank or higher.
Reaching S rank, means all of the additional buffs trigger plus more damage as Verso at S rank deals up to +200% additional damage.

You actually don't get the previous rank benefits at higher rank. If a skill says you get a bonus at rank C, for example, once you reach rank B you no longer get it.