Newbie question regarding high water bless

[Managarm]

Hello,

I'm quite new to this amazing game, and after reading several posts I'm still a little bit confused with the Quickness thing granted by a high watery bless...

According to what I have read so far is that a W9 Bless confers 50% Quickness that means an extra action (attack) every two combat rounds plus extended AP.
But what about the "Also gains Att +3, Def +3" bonus that the Quicken Self spell grants?

On top of that, what will happen if I choose the ultimate W10 Bless?? Will my sacred armies receive a 100% Quickness bonus (double attack rate, Att +3, Def +3, extended AP)?

Thanks!