Priest exp guide - AM (Level 80+)

[GM-Ayu]

If Amon Ra is damaged and use heal on himself, he'll still summon monsters. Being on target of Heal will cause him to summon as well, including the case of healing himself.

Bathory armor will block Amon Ra's Blood Sucking/Energy Drain attack, along with Dark Blessing. So as long as you got bathory, Amon Ra won't do anything to you except normal attack unless you try to do something to him. He does do meteor storm naturally, but only once every 5 seconds which is acceptable as something you can teleport away from.