Ichigeki Hissatsu

Name: Ichigeki Hissatsu (One hit, One kill.)

Manifestation: An empty suit of silver samurai armor.

Release Phrase: Take form, Ichigeki Hissatsu!

Family: Gravity

Level: Shikai

Sealed Zanpaktou: Ordinary katana, but completely silver all over, even the handle, with details on hilt in black.

Shikai: The blade becomes much larger and wider, turns black, then splits down the middle.
It takes the shape of a broadsword except for a circle cut in the middle that glows with silvery spiritual energy.

Shikai Ability:
The spiritual energy inside the circle can be blown into large bubbles that attach themselves to the opponent and slow their movements down drastically for about 5 posts before exploding with gravitational energy that throws the opponent into the air.
The bubbles are controlled by the user's thoughts although unless they attach to someone, they will pop after 2 posts. They can be popped by the opponent but it takes a very powerful strike, full of spiritual energy as they are made of spiritual energy them selves.
If they are attached onto the user they have the opposite effect, speeding him up drastically, while around him everything appears to go into slow motion.

Change it into actual post counts for the Shikai ability, as seconds can't be judged accuratly in RP format

Done, and thanks for the tip