Fairy Sphere

Fairy Sphere is one of the three Great Magics of the Fairy Tail Guild and it is distinct to it.

Description
It looks like a giant bubble with a Fairy Tail mark and a pair of stylized wings on it.

A spell which converts Fairy Tail member's bonds and faith into Magical power. It is a Magic that will protect the guild from any evil, an absolute defense Magic. However, it seals everyone inside the sphere into a frozen state in which they cannot age. It's powerful enough to protect Tenrou Island and everyone on it from Acnologia's Dragon Roar attack.