i noticed sumthing unique about the 3 tails
the reason y deidra was able tow in was stealth
BUT HIS ARMOR IS i think the strongest
like every other
What abilities this creature possesses remains unclear in the manga, as it did little to actually attack Deidara and Tobi in its short appearance in the manga. The Three-Tails is clearly quite fast despite its size, as evidenced by its ability to keep up with Tobi, who was running on the water at the time. While fighting the Three-Tails, Tobi complained that Kisame would've been a better choice to capture the creature because of the Three-Tails' affinity with the water, which suggests that it could use water techniques, despite not being demonstrated.
In the anime, however, it has been shown that its skin is very hard, able to shatter Crystal Release techniques with ease, it could also unleash a powerful roar attack that can repel matter, the roar also appears to have some relation to sonics as it could shatter crystals due to the high frequency, finally it has a 360° tidal wave technique that can cause large scale damage. It has limited genjutsu capabilities that enables it to create a powerful fog that can cause animals to become confused and people to hallucinate.
One other ability that the Three-Tails has been shown to use was the opening of a portal to a separate dimension within the lake that it had appeared from. Whether or not this ability is exclusive to the Three-Tails or if the other Tailed Beasts can use it as well is unknown. It has also not been revealed if the Tailed Beasts reside within their own dimension together or separated.