Synergizes very well with Otyugh's Cry, as the sharing of damage happens after the armor level of the pet is computed (but before reduction by Call of Protection). The more armor the Pet has, the less damage is transferred to you; Call of Protection will not reduce damage before redirection occurs.
The redirected damage is untyped.
Combine with casting Balthazar's Spirit on yourself to gain Energy whenever your pet takes damage. This will also stack with Essence Bond cast on your pet, resulting in gaining 2 energy whenever your pet takes damage.
Beware - since it is a shout, you cannot end it prematurely if you are taking too much damage.