Sylph, Honorspren

Flying, Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you
control both of them.)
As long as Sylph, Honorspren is paired with
another creature, both creatures have Vigilance
and "{1}{w/u}: Exile this creature, then return it
to the battlefield under your control."
"I bind things, Kaladin. I am honorspren."