Wendy Marvell

Wendy is a young female mage belonging to the guild, Cait Shelter. Not much has been shown about this character as of yet but through a conversation between the two dragons - Grandine and Igneel, we can see that Natsu is somewhat wary of her character. Natsu may have heard the name, "Wendy" from Igneel during their time together. Blaine also seems to know her as well.

Oracion Seis Arc
Wendy is Cait Shelter's delegate sent to the alliance meeting of Fairy Tail, Lamia Scale, and Blue Pegasus along with the cat mage Charle; much to the shock of all there due to the fact that she is only a child. She tells the delegates there that although she has no particular combat prowess she is able in support magic. Natsu zones outs a bit once he sees her getting the feeling he knows her, but can't quite remember where. Soon the alliance sets off to find Oracion Seis after being briefed about them and quickly find their target (or moreover they find them after the Blue Pegasus' airship is destroyed). Wendy quickly hides herself behind a rock and stays there for the duration of the battle as she watches the others get trounced by the OS. Just as the OS's leader Blaine is about to finish them off he spots Wendy and halts his attack, suddenly shaken at the sight of her.

Abilities
None of Wendy's abilities have yet to be shown but she has said that she has no inclination for offensive type magic. She uses support type magic to help allies. In Chapter 135, the female cat states the Wendy is the Dragonslayer of the Sky.

Quotes
"I daresay that child too will meet with Wendy someday" -Grandine to Igneel (Fairy Tail Ch.133 Pg.9)

"I can't actually fight at all but I know lots of support magic that should be useful to all..." -Wendy to the allied contingency of Fairy Tail, Blue Pegasus and Lamia Scale (Fairy Tail Ch.133 Pg.04)