Sky Dragon Slayer Magic

Sky Dragon Slayer (天の滅竜魔法 Ten no Metsuryū Mahō) is a Caster Type magic, Lost Magic and a type of Dragon Slayer magic used by Wendy Marvell.

Abilities
This Magic allows her to incorporate the element of wind into her body and also allows her to consume external sources of her element to restore her body to a healthy state which means that her Magic works well in clean environments.

Unlike other Dragon Slayers, Magic Sky Dragon Slayer is more directed not to attack, but the healing (also fevers and painkiller ) and support in the fight (to increase ally's attack power or increase his/her speed).

However, Wendy has proven (at the suggestion Jellal) that in her too is, so characteristic for the Dragons, the potential to cause extreme damage. She managed to learn by herself two offensive attacks (both are her variations of Natsu's attacks).

What is interesting, how that element it surrounds her, the possibility of regeneration of the magic seems to be unlimited (as shown in the fight against Faust, when he was the only one was able to use three times the Sky Dragon's Roar).

Limits
Like all Dragon Slayer, Wendy can't renew her magic source with magic, which she produce. In her case it is more important, because (even though it may cast a spell to help each other as Vernier) she can't be healed from the wounds by herself.

Moreover, Wendy, as her magic is based on the air surrounding her, is very weakened in a contaminated environment.

As the treatment requires a very large expenditure of magical energy, Wendy can use it in very limited quantities.

Trivia

 * It is said that Sky Dragon Slayer Magic actually focuses more on healing than damage which is impressive in its own right since true healing Magic apparently has been lost.