The best place to farm Formula: Enchant Cloak - Stealth is Silithus, where General Rajaxx (level 63) drops it at 1.0%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 15 sources are ranked below by drop chance.
Gold per kill: General Rajaxx is worth about 19g 80s 40c a kill in item drops (vendor prices).
Best zones:
| Zone | Sources | Best source | Level | Drop% |
|---|---|---|---|---|
| Silithus | 1 | General Rajaxx | 63+ | 1.0% |
| Ahn'Qiraj | 8 | Battleguard Sartura | 63+ | 1.0% |
| Ruins of Ahn'Qiraj | 5 | Ayamiss the Hunter | 63+ | 1.0% |
| Unknown zone | 1 | Ouro | 63+ | 1.0% |

- General Rajaxx 29.1, 93.6
All sources, by drop chance:
| Source | Level | Zone | Spawns | Side | How | Drop% | Map |
|---|---|---|---|---|---|---|---|
| The Prophet Skeram(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Viscidus(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Ossirian the Unscarred(elite) | 63+ | Ruins of Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Moam(elite) | 63+ | Ruins of Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| General Rajaxx(elite) | 63+ | Silithus | 2 | Drop | 1.0% | map | |
| Kurinnaxx(elite) | 63+ | Ruins of Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Ayamiss the Hunter(elite) | 63+ | Ruins of Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Buru the Gorger(elite) | 63+ | Ruins of Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Princess Huhuran(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Fankriss the Unyielding(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Lord Kri(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Battleguard Sartura(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Ouro(elite) | 63+ | 0 | Drop | 1.0% | map | ||
| Princess Yauj(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map | |
| Vem(elite) | 63+ | Ahn'Qiraj | 1 | Drop | 1.0% | map |
Drop% is the rate recorded in Forever once a source has been looted ten times; a greyed figure is the vanilla 1.12 chance from the world data (classic data: from the patch 1.12 world data, not yet confirmed in forever). Spawns counts the source's spawn points in the world data. "Side" names which side can kill the NPC when the other finds it friendly. The lead picks the best chance among sources that are not a rare spawn and have at least three spawn points.