From Pixelmon Wiki
Mega Launcher is an Ability that boosts the power of "pulse" moves by 50%. This includes the following moves:
Additionally, Heal Pulse will heal 75% of the target's health when used by a Pokémon with Mega Launcher.
|Pokémon||Type||Ability 1||Ability 2||Hidden Ability|
|Mega Blastoise||Water||Mega Launcher||None||None|