Avacyn, Keeper of the Weak

Flying, Indestructible, Battle Cry
When this enters the battlefield, target
permanent you control gains Indestructible while
you control Avacyn, Keeper of the Weak.
Behest {2}{p/c}{p/c},{t}: All damage that would be dealt
to target creature is now dealt to Avacyn instead.
If both commanders, you may target an
additional creature.
"None shall fall on my watch!"