Noted!
Shark Teeth is a nice technique that reminds me a bit of some Kaguya clan applications as it generates sharp objects that can be sent towards the opponent. It allows for the teeth to be shot at a range after being summoned or even be used to crash from the opponent from above. I'm assuming it's summoning from above must occur in short range due to the initial wording of the technique, a minor setback but nothing that major I guess.
I guess I'll have to fight on ponds mostly to use a few of the next ones or create a custom to alleviate some of the water restrictions. Breakthrough is basically a water projectile that's restricted to short range w/o hand seals, while Shark Bomb is the same but at a distance though with handseals and w/o the need of a water source.
Yeah you assume correctly, they must be summoned in short range, though that works well if you engage in a CQC fight. Moving on, and same as your other training I'm pretty sure you can use the sword tech without Samehada, since it mentions being used by shark signers and they can't have that sword.
( Suiton: Kūfuku no Same Droppu ) - Water Release: Hungry Shark Drop
Type: Offensive
Rank: C
Range: Short
Chakra: 15
Damage: 30
Description: Kisame Jumps into the air and then points Samehada down towards the opponent and then envelopes it in water. He then manipulates its shape molding it into a shark and drills the opponent into the ground.
Note: Can only be used by Kisame Bios or bios that signed the Shark Contract.
( Suiton: Amesuikōha ) - Water Release: Rain Water Shark Wave
Type: Offensive
Rank: C
Range: Short-Mid
Chakra: 15
Damage: 30
Description: The user slams his hand on a puddle, creating a few water sharks, which rush towards the target. Should they be attacked, water that composes the sharks simply reforms into smaller sharks, creating raindrop-sized water sharks that are still quite capable of inflicting damage.
Note: The second attack counts as one the moves per turn
Note: Can only be used by Kisame Bios or bios that signed the Shark Contract
(Suiton: Suikō Teppō no Jutsu) - Water Release: Water Shark Gun Technique
Type: Offensive
Rank: B
Range: Short
Chakra: 20
Damage: 40
Description: An advanced version of Water Release: Water Shark Breakthrough in which the user can summon up to three sharks at once rapidly to advance on the target, and can cause severe internal injuries.
Note: Requires a water source.
Note: Can only be used by Kisame Bios or bios that signed the Shark Contract.