The best place to farm Flash Powder is Stranglethorn Vale, where Skullsplitter Beastmaster (level 41-42) drops it at 0.0%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 14 sources are ranked below by drop chance.
Best zones:
| Zone | Sources | Best source | Level | Drop% |
|---|---|---|---|---|
| Blackrock Spire | 4 | Spirestone Battle Mage | 57-58+ | 0.1% |
| The Barrens | 1 | Razorfen Battleguard | 33-34+ | 0.0% |
| Loch Modan | 1 | Shadowforge Surveyor | 35-36+ | 0.0% |
| Stranglethorn Vale | 3 | Skullsplitter Beastmaster | 41-42 | 0.0% |
| Felwood | 1 | Jadefire Betrayer | 52-53 | 0.0% |
| Scholomance | 2 | Risen Guard | 57-59+ | 0.0% |
| Scarlet Monastery | 1 | Scarlet Champion | 39-40+ | 0.0% |
| Desolace | 1 | Burning Blade Adept | 31-32 | 0.0% |

- Razorfen Battleguard 47.6, 88.9
All sources, by drop chance:
| Source | Level | Zone | Spawns | Side | How | Drop% | Map |
|---|---|---|---|---|---|---|---|
| Spirestone Battle Mage(elite) | 57-58+ | Blackrock Spire | 4 | Drop | 0.1% | map | |
| Firebrand Invoker(elite) | 56-57+ | Blackrock Spire | 11 | Drop | 0.0% | map | |
| Spirestone Reaver(elite) | 55-56+ | Blackrock Spire | 3 | Drop | 0.0% | map | |
| Razorfen Battleguard(elite) | 33-34+ | The Barrens | 49 | Drop | 0.0% | map | |
| Shadowforge Surveyor(elite) | 35-36+ | Loch Modan | 39 | Drop | 0.0% | map | |
| Skullsplitter Beastmaster | 41-42 | Stranglethorn Vale | 28 | Drop | 0.0% | map | |
| Jadefire Betrayer | 52-53 | Felwood | 26 | Drop | 0.0% | map | |
| Risen Guard(elite) | 57-59+ | Scholomance | 12 | Drop | 0.0% | map | |
| Scarlet Champion(elite) | 39-40+ | Scarlet Monastery | 9 | Drop | 0.0% | map | |
| Smolderthorn Witch Doctor(elite) | 56-57+ | Blackrock Spire | 7 | Drop | 0.0% | map | |
| Splintered Skeleton(elite) | 59-60+ | Scholomance | 5 | Drop | 0.0% | map | |
| Bloodscalp Hunter | 34-35 | Stranglethorn Vale | 76 | Drop | 0.0% | map | |
| Skullsplitter Scout | 41-42 | Stranglethorn Vale | 28 | Drop | 0.0% | map | |
| Burning Blade Adept | 31-32 | Desolace | 18 | Drop | 0.0% | 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 (vanilla reference — from the 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.