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A tailed beast, or it's jinchūriki, uses its massive chakra reserve to turn a simple growl or roar into a powerful force of pressure and destruction. A jinchūriki at their initial jinchuriki form can use this roar to go through any basic technique, even some low level elemental techniques. In a higher tailed form, this technique is as strong as a basic Shinra Tensei and, when used in a full possession form, it is as strong as Pain's fully powered Shinra Tensei.