Alex practiced the Falling Rain Blossom technique first. He sat before Bladedance and learned the technique in a matter of hours. When his Sword Qi began forming in the sky and dropping to the ground, Bladedance could only watch in awe at just how quickly he had managed to learn it.
At the moment, the rain he made caused the ground to be completely destroyed, so he needed to train some more so he could at least control the level of destruction he brought forth.
In the case of Bladedance, her Sword Qi that fell from above would disappear the moment they hit the ground, very rarely damaging the floor at all. So, Alex needed to train and become proficient in his technique until he could do the same.
It took Alex a few more days to gain enough control over his technique, but in doing so, he had severely weakened it. The rain that fell only came in a small area around him, and when he tried to expand it, the density of his Sword Qi dropped.
