Blue Moon Beasts

The Blue Moon Beasts are magical beasts that the Charmed Ones had changed into on the three nights of the Blue Moon.

History
When the Blue Moon appeared over San Francisco for a second time, which only occurs once every fifty years, it affected the Charmed Ones' powers, making them unstable and giving Phoebe violent and painful nightmares connected to her premonitions. When the blue moon appeared in the sky, they turned into wild wolf-like Beasts who attacked whitelighters and Elders, partly because of their strained relationship concerning Leo and because they felt threatened by them.

If the Blue Moon were to appear again for the same amount of days during the time of the new Charmed Ones. Its possible that Prue, Melinda and Tamora may change into the Blue Moon Beasts. And if they did, its also possible that the results may be even worse than when this happened to the original Charmed Ones; since its stated that each generation becomes more powerful and stronger than the previous.

Powers and Abilities
Active Powers Other Powers
 * Super Strength: The ability to possess magically enhanced strength.
 * Agility: The ability to possess magically enhanced agility.
 * High Resistance: The ability to be highly resistant to physical and magical harm. As the beasts, the Charmed Ones were able to survive the lightning bolts thrown at them by Odin.

Notes and Trivia

 * It was never stated if the Blue Moon Beasts were good or evil. But seeing as that they attacked whitelighters and Elders, they can technically be considered evil for the length of the Blue Moon.
 * This is theorized by the fact that a Wendigo is evil, however Piper (when turned into one) still retained her freezing power. With that information in mind, it can be concluded that the post-transformation beast is evil and the person being converted is still good (considering they are and have always been good).