In total, there were nine forms of Aquamancy.
The most common, obviously, being 'Form': To draw moisture from the air and condense it into liquid water.
This was the most basic of Aquamancy techniques, and the one every Aquamancer was most familiar with.
As the most rudimentary of techniques, the water that was produced—if not subjected to higher-level techniques or transformations—could only be used for the simplest attacks, dealing little damage to speak of. The Aqua Bullet, for example, only did a pitiful three points of Magical Damage.
The next technique was 'Freeze.'
Once the water was hardened into solid ice, it produced dramatic increases to damage and defensive potential. Frost Arrows, Frost Lances, and Chilling effects… Once an Aquamancer became proficient in this technique, they would be toothless no longer. To put it another way, this technique was what truly made an Aquamancer.
Then there was 'Burst!'