My Undead Lord Cleric has just hit 5th mythic tier and I was thinking about taking mythic source.
The undead lord archetype says:
"An undead lord must select the Death domain (and the Undead subdomain). She does not gain a second domain."
Mythic source says:
"If you’re a cleric or you venerate a deity, you may change your spell domains to those you grant others."
When I gain mythic source, can I change my domain, as per the mythic ability, or am I still locked in to the death domain due to my archetype?
Does one overrule the other? / Will this be entirely based on the DM choice or is there a precedent one way or the other?