Edison Format · March 2010
If there is a Machine in your GY, and you control a Zombie and a Machine, only the Machine gains the ATK.
If there are no monsters in your GY, no ATK is gained.
If non-Zombie-Type monsters in the GY are being treated as Zombie-Type due to "Zombie World" the ATK boost will not apply.
If you only have Warrior-Type monsters in your GY and non-Warrior-Type monsters on the field are being treated as Warrior-Type by "DNA Surgery", the ATK boost will apply to the monsters on the field.