Io

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 Io is paired with another
creature, both creatures get +2/+2
and have lifelink and have"{w}Exile this
creature, then return it to the battlefield
under your control. "
"Beep boop"