Fiendish Aether Key is a level 4 Superior item in the Keyblade category of AION Retail 7.8.
Similar items
| Item | Grade | Level |
|---|---|---|
| Ulgorn's Aether Key | Common | 5 |
| Hunter's Aether Key | Superior | 4 |
| Magic Aether Key | Heroic | 1 |
| NPSC Crucible Aether Key (valid until 4.0) | Fabled | 1 |
| Tahabata's Aether Key | Eternal | 50 |
| Dragon Lord's Yearning | Mythic | 60 |