All "Scrap" monsters gain 200 ATK and DEF. When a face-up "Scrap" monster is destroyed by a card effect and sent to the Graveyard: You can Special Summon 1 "Scrap" monster from your Deck. You can only use the effect of "Scrap Factory" once per turn.
It's pretty crazy, really, considering just about every card in my favorite Archetype is a +0, and then this randomly gives you a +1 out of nowhere.
Discuss.