[Gregstrom]

For Undead General, might it be either undead leadership or ability to animate undead? Or even the national tag for 'living priests can animate undead', perhaps.

It's almost a shame there's nothing cleverer than that about it - I've more than once got Legendary Cruelty on a scout who'd been using Winter Bringer, and I'd been wondering if that ability was triggered by wounding a lot of units without actually killing them.