Yeah, it is broken by S-Ranks and survives A-Ranks. And yeah, you need clones at the minimum for this.
And yes, this adheres to elemental strengths and weaknesses as well. And no, stick with the description.
(Shisekiyōjin) Four Red Yang Formation
Type: Supplementary
Rank: S-Rank
Range: Short-Long
Chakra: 70 (-20 per turn)
Damage: N/A
Description:
A powerful barrier formation noted to only be usable by those of Kage Level, whereby four shinobi, standing in a square formation, erect a large barrier that is red in colour. It was stated to be several times stronger than the Four Violet Flames Formation, and is highly malleable. When assaulted by a Tailed Beast Ball from the Ten-Tails, the barrier simply distorted its shape, forcing the brunt of the attack upwards while it was left completely intact. Its users can create openings within the barrier to allow passage. The barrier is apparently very chakra-taxing since at least two of its users are limited in the usage of other techniques, such as clone techniques, while maintaining the barrier at the same time. Despite this, the users can still perform techniques and hand seals while sustaining the barrier. The barrier itself is strong enough to resist any S-Rank technique known and, despite being opened on top, is very high and hard to escape from. Alternatively, high ranked ninjas can use this technique by using clones. In this case, only Sage rank ninjas have the necessary chakra reserves to produce the technique.
Note: Can only be used by either 4 Kage ranked Ninjas or, if the user is Sage rank, through the usage of clones.
Note: While sustaining it, the users cannot mold chakra above A-Rank and can only use one additional technique per turn
Note: Usable twice per battle
(Fuuinjutsu: Haisui Chakura) Sealing Arts: Chakra Draining Seal
Type: Supplementary/Defensive
Rank: S-Rank
Range: Short
Chakra: 40 (drains 100 chakra per turn)
Damage: N/A
Description:
This is a simple seal where the user does 2 simple handseals and slams his ground on a surface. Upon that surface, a 2 meter diameter sealing formula circle of kanjis and markings spreads, activating the technique. Any enemy that makes contact with the formula becomes unable to mold chakra as the sealing technique drains his chakra and his stamina. If the enemy manages to escape the seal, he will recover use of his chakra.
Note: Usable twice per battle.
( Ura Shishō Fūinjutsu ) - Reverse Four Symbols Sealing Technique
Rank: S-Rank
Type: Offensive
Range: Short – Mid
Chakra cost: 40
Damage points: 80
Description: This is a sealing jutsu that is placed upon the users body, setting it to activate on the users death. It seals everything within a large, nearby, spherical into the users body.
Note: Can only be activated upon the users death.
Note: The placement of this seal must be stated on the user's biography.