Requires at least 1 non-cantrip grave spell that destroys a thrall. Most Archetypes don't get the focus spells at first level, and with this archetype, they most they'd get at first level is create thrall, a Grave CANTRIP, but not one of the subclass grave spells, or a level 1 class feat.
Comments
Flavor protection. Maybe make it lvl but require a feature the archetype doesn't get.