Tethered Tormenter

Bloodbind 3 (As this creature enters the battlefield,
you may pay 3 life. If you do, bind this creature to
another nonartifact creature. When that creature
leaves the battlefield, exile this creature.)
As long as Tethered Tormenter is bound to
another creature, it has indestructible.
{t}: Tethered Tormenter deals 2 damage to
target creature and 2 damage to itself.