عملاق المسننات X

2 Level 4 Machine-Type monsters
Once per turn: You can detach 1 Xyz Material from this card; add 1 Level 4 or lower Machine-Type monster from your Deck or Graveyard to your hand. When this card leaves the field: You can target 1 Level 3 or lower "Geargia" monster in your Graveyard; Special Summon that target.