| Mega Drain | Details | Level Up | TM | Move Tutor | Egg Move | 
| Gen IX Dex | Gen VIII Dex | Gen VII Dex | Gen VI Dex | Gen V Dex | 
| Gen IV Dex | Gen III Dex | Gen II Dex | Gen I Dex | 
| Attack Name | Battle Type | Contest Type | 
| Mega Drain |  |  | 
| Power Points | Base Power | Accuracy | 
| 10 | 40 | 100 | 
| Battle Effect: An attack that absorbs half the damage inflicted. | ||
| Secondary Effect: User recovers half the damage inflicted. | Effect Rate: -- % | |
| TM # | Appeal Points | Jam Points | 
| None |   |      | 
| Contest Effect: Badly startles the POKéMON in front. | ||
| BrightPowder | King's Rock | Physical Contact | 
| Yes | No | No | 
| Battle Palace Style | Battle Arena | Pokémon Hit in Battle | 
| Attack | +1 | Selected target | 
| Picture Example of Mega Drain | ||
|  | ||
Pokémon That Learn Mega Drain By Level Up in Ruby/Sapphire/Emerald/Colosseum/XD:
| No. | Pic | Name | Type 1 | Type 2 | 
| #045 |  | Vileplume |  |  | 
| #114 |  | Tangela |  |  | 
| #140 |  | Kabuto |  |  | 
| #141 |  | Kabutops |  |  | 
| #187 |  | Hoppip |  |  | 
| #188 |  | Skiploom |  |  | 
| #189 |  | Jumpluff |  |  | 
| #191 |  | Sunkern |  |  | 
| #252 |  | Treecko |  |  | 
| #267 |  | Beautifly |  |  | 
| #270 |  | Lotad |  |  | 
| #285 |  | Shroomish |  |  | 
| #286 |  | Breloom |  |  | 
| #315 |  | Roselia |  |  | 
Pokémon That Learn Mega Drain By Level Up in Fire Red/Leaf Green:
| No. | Pic | Name | Type 1 | Type 2 | 
| #045 |  | Vileplume |  |  | 
| #114 |  | Tangela |  |  | 
| #140 |  | Kabuto |  |  | 
| #141 |  | Kabutops |  |  | 
| #187 |  | Hoppip |  |  | 
| #188 |  | Skiploom |  |  | 
| #189 |  | Jumpluff |  |  | 
| #191 |  | Sunkern |  |  | 
| #252 |  | Treecko |  |  | 
| #267 |  | Beautifly |  |  | 
| #270 |  | Lotad |  |  | 
| #285 |  | Shroomish |  |  | 
| #286 |  | Breloom |  |  | 
| #315 |  | Roselia |  |  | 
Pokémon That Learn Mega Drain By Breeding:
| No. | Pic | Name | Type 1 | Type 2 | 
| #114 |  | Tangela |  |  | 
Pokémon That Learn Mega Drain By Purifying or A Special Way:
| No. | Pic | Name | Type 1 | Type 2 | 
