Daeva In the Zoroastrian religion, a daeva is a demonic and destructive being. Daevas are combated by the ahuras who help to uphold the moral law. Daeva "translates to demon of darkness. Zoroastrian demons, and theyre savage, animalistic.. They're like "Shadow Demons" Summoning We can summon daeveas using a black altar. The Zoroastrian symbol (The Z) is a sigil for a Daeva. powers & Abilities They are invisible to the human eye except for their shadows. Weaknesses Flare gun - Repels them, making it impossible for shadows to exist in a with that much light.