Prayer with ‘Any Hero Phase’ usable in enemy hero phase without using command?

My friend and i are wondering if this prayer can be used in the enemy hero phase without using the ‘Magical Intervention’ command. He says he can since it’s listed as ‘Any Hero Phase’, therefore won’t get the -1 on chanting rolls when using it in the enemy hero phase, and then still use the ‘Magical Intervention’ command so you can use 2 prayers in the enemy hero phase. Anyone knows if this is correct?

My friend and i are wondering if this prayer can be used in the enemy hero phase without using the ‘Magical Intervention’ command. He says he can since it’s listed as ‘Any Hero Phase’, therefore won’t get the -1 on chanting rolls when using it in the enemy hero phase, and then still use the ‘Magical Intervention’ command so you can use 2 prayers in the enemy hero phase. Anyone knows if this is correct?