Name: Water Blade
Rank: D
Magic Cost: 10
Requirements: Possession of the Blade of Seven seas
Class: Offensive
Element: Water
Cooldown: 2 posts
Duration: Instant
Effect: The wielder veils their blade in water from surrounding water or water vapor taken from the air or a nearby source of water and swings it, launching a 6 foot long, 2 foot wide blade of water out at 10 m/s. The blade reaches out at a max of 5 meters before it turns into normal water which if it hits at that point will just be like getting hit with a water balloon. If i hits this spell can cause light cuts, bruising, and a 2 meter knock back. It can be blocked by a D rank spell or shield.

Name: Runoff
Rank: D
Magic Cost: 10
Requirements: Ownership of the Blade of Seven seas
Class: Offensive
Element: Water
Cooldown: 1 post
Duration: instant
Effect: The wielder can turn their weapon into water vapor if the blade is within a 5 meter radius and travels back to the wielder, reforming into its solid form in the wielders hand. This can only work if the wielder loses possession of the blade and is within the range given. It has no other affects aside from being able to return to the wielder.

Name: Pressure Plate
Rank: D
Magic Cost: 10
Requirements: Possession of the Blade of Seven seas
Class: Supplementary
Element: Water
Cooldown: 2 post
Duration: Instant
Effect: The wielder gathers water into their legs and uses the force to propel themselves up to 5 meters away at a speed of 10 m/s by using the force as a pusher, like a rocket taking off from the ground, for example.

Name: Malicious Battery
Rank: D
Magic Cost: 10 /5 per
Requirements: Possession of the Blade of Seven seas
Class: Offensive
Element: Water
Cooldown: 4 posts
Duration: 4 posts
Effect: The wielder separates their blade into two, connecting the bottoms of the hilts with a small stream of water an inch thick. This string can be broken by a single D rank spell or attack by a weapon. If broken, water from both halves shoot out and connect to one another and form one single blade again. If the weapon goes outside a 2 meter radius from the wielder, it reforms into the single blade. The water connecting the two halves stretches out as most as 2 meters.

Name: Bubble Ball
Rank: C
Magic Cost: 20 /10 per
Requirements: Possession of the Blade of Seven seas
Class: Offensive
Element: Water
Cooldown: 4 posts
Duration: 3 posts
Effect: The wielder raises their weapon and water begins to pour out from the blade and form a solid bubble around them, making a one meter between the bubble and the wielder. The bubble can absorb 4 D rank spells, 2 C rank spells, and one B rank spell before it pops.

Mana Costs
Your last two your mana costs are backwards. The initial use of the technique and the sustain are the same in cost unless you are cleric, in which you get a 5 point reduction only. You're a scout, so your sustain should match the initial cost of the spell.

Durations
Both of these are wrong. Cooldown must be higher than duration. Also, they need numerical values.

Bubble Ball
Remove the Knockback or State you can not move during the duration of the technique.

Bumping~

Approved.