Natsu Dragneel

Whenever Natsu is included in a red spell or
ability's affects, Natsu is unaffected, and gets
+X/+X until end of turn where X is the cost
payed for the spell or ability.
(If Natsu is the only one affected the spell or
ability, it fizzles)
If Natsu would leave the battlefield, return it
to the battlefield transformed under it's owner's control.