Ivory, Inkspren

Indestructible
Bond (When this creature enters the battlefield,
attach it to target legendary nonspirit creature
you control that is not already bonded. Return
this creature to your hand when bonded creature
dies.)
Bonded Creature gets Vigilance, Deathtouch, Hexproof, and +2/+1.
"Ivory, you think all humans are unstable."
-Jansah Kholin