Four Red Yang Formation

A powerful barrier formation noted to only be usable by those of Kage calibre, 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 Battle Encampment, strong enough to survive a Tailed Beast Ball from the Ten-Tails. Its users can open up small openings in the barrier to allow passage.