Illusionist Eidolon

Hexproof
{2}{u}{u}: Put one 4/4 dragon illusion enchantment creature token on the battlefield. It has "When this creature becomes the target of a spell or ability, sacrifice it.
Some say it's the spirit of a grand illusionist, others
say it was a conjuration of Jace's thoughts, either way it's best not to cross paths with it.