Can the Hierophant use the Inspired Spell feature to cast domain spells?

Question

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.

Answer 1

Yes, but only if you have that domain.

Inspired Spell 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.

Emphasis mine. Inspired spell allows you to cast any divine spell that meets one of these three requirements:

• It's on your class's spell list.
• It's on your domain's spell list.
• It's on your mystery's spell list.

So you could use it to cast Spike Stones as a cleric, if you have the Earth Domain, otherwise you wouldn't be able to do so.