Nexus Clash

Wild Strikes
Targets attacked by the IB get 2 stacks of Cleaving. Attacks on a different target consume 1 stack of Cleaving, and deal half the attack's uncharged damage.

Child of Ahg-za-haru
Targets attacked by the IB get 4 stacks of Cleaving. Pets take full damage from Cleaving. Characters at critical health (<25%) take full damage from Cleaving.
Possibly +1 damage, too.

This would trigger retaliation from pets

Been told that pets can't have Statuses, so this could be implemented as a positive Status for the IB instead.