Does the Inspired Spell feature from the Hierophant mythic path allow you to cast what would otherwise be a domain-only spell?
The Inspired Spell feature says:
You can expend one use of mythic power to cast any one divine spell, treating your caster level as 2 levels higher. This spell must be on your divine spell list (or your domain or mystery spell list) and must be of a spell level that you can cast using that divine spellcasting class. If you are a spontaneous spellcaster, you don’t need to have the spell prepared, nor does it need to be on your list of spells known. Using this ability does not expend a prepared spell or available spell slot. You can apply any metamagic feats you know to this spell, but its total spell slot level must be a slot level you can normally cast.
For an example, let's look at the spike stones spell. It's Druid 4 / Shaman 4 / Earth Domain 4. As it's a domain spell, it is technically a divine spell.