"Jumbo Drill" and "Road Roller".
|Heavy Industry Card||Origin|
|Digvorzhak, King of Heavy Industry||Bucket-wheel excavator|
|Road Roller||Road roller|
|Strong Shovel Excavator||Power shovel|
The cards focus on getting three members of the archetype on the field, and using combinations of their support cards to have all three on the field with their Levels changed into 5, to Xyz Summon "Digvorzhak, King of Heavy Industry", destroy the opponent's monsters, and attack directly with "Digvorzhak".
The cards in this archetype are all EARTH-attribute Machine-Type monsters, so they take profit from support for both. Basic Machine support like "Limiter Removal" allows "Drill Jumbo" and "Strong Shovel" to launch an extra powerful attack (and if possible or needed, "Road Roller"), and then if possible already, overlay them before they are destroyed by "Limiter Removal" for "Digvorzhak" or another Xyz Monster.