Xana Aguilari

Flying, double strike, haste, vigilance
Whenever a creature deals damage to Xana
Aguilari, that creature loses all keywords until
end of combat phase.
If that creature is a Legendary Dragon creature,
Xana Aguilari, gains +X/+X, where X is half that Legendary Dragon creatures' power plus it's toughness.
"I've been broken before. I won't be broken again."