I shit you not. There is a real Pokemon move that is described as, basically, self-dismemberment. For the purpose of stat gain.

No, Lugia can't learn it...but oddly enough, Skarmory and the Aron/Aggron family can. Potential for more modular Pokemon? Here's a list of all Pokemon that can learn it, whether it be by level up or breeding:

Steelix
Skarmory
Forretress
Aron
Lairon
Aggron
Gear
Gigear
Gigigear
Geodude
Graveler
Golem
Dangoro
Gantoru
Gigaisu
Banipucchi
Baniricchi
Baibanira