Quarter Century Stampede

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.

Gear Gigant X

Once per turn: You can change this card to face-down Defense Position. When this card is flipped face-up: You can add 1 "Geargia" monster from your Deck to your hand, except "Geargiarmor".

Geargiarmor

2017 Mega-Tin Mega Pack

Target 2 or more "Geargiano" monsters with different names in your Graveyard; Special Summon them. Immediately after this card resolves, Xyz Summon 1 Xyz Monster using all the Summoned monsters (but no other monsters) as Materials. You can only activate 1 "Geargia Change" per turn.

Geargia Change

Once per turn: You can change this card to face-down Defense Position. If this card is flipped face-up: You can destroy monsters on the field, up to the number of other "Geargia" monsters you currently control.

Geargianchor

Machine Reactor Structure Deck

When this card is Normal Summoned: You can add 1 Level 4 EARTH Machine-Type monster from your Deck to your hand, except "Geargiauger", also you cannot declare attacks, nor Special Summon monsters except Machine-Type monsters, for the rest of this turn.

Geargiauger

Geargia Rampage Structure Deck

If you control a "Geargia" monster, you can Special Summon this card (from your hand) in Defense Position. When this card is sent from the field to the Graveyard: You can target 1 "Geargia" monster in your Graveyard, except "Geargiaccelerator"; add that target to your hand.

Geargiaccelerator

Special Summon 2 "Geargiano" monsters from your Deck and increase their Levels by 1. You can only activate 1 "Geargiagear" per turn.

Geargiagear

3 Level 3 monsters
During either player's Battle Step, while an attack involving your Machine-Type monster is occurring: You can detach 1 Xyz Material from this card; negate the effects of all face-up cards your opponent currently controls, also your opponent cannot activate cards or effects. These effects last until the end of the Damage Step. When this face-up card leaves the field: You can target 1 other "Geargia" card in your Graveyard; add that target to your hand.

Geargiagear Gigant XG

You can Tribute this card, then target 1 Level 4 Machine-Type monster in your Graveyard; Special Summon it, but its effects are negated.

Geargiano

When this card is Normal or Flip Summoned: You can Special Summon 1 "Geargia" monster from your hand or Graveyard in Defense Position.

Geargiano Mk-II

When this card is Special Summoned by the effect of a "Geargia" card: You can Special Summon 1 "Geargia" monster from your hand or Graveyard in Defense Position, except "Geargiano Mk-III", but its effects are negated. You can only use this effect of "Geargiano Mk-III" once per turn. You cannot Special Summon monsters the turn you activate this effect, except "Geargia" monsters.

Geargiano Mk-III

This card gains 200 ATK for each "Geargia" monster you control. You can Tribute this card; Special Summon 1 "Geargia" monster from your Deck in Defense Position, except "Geargiarsenal".

Geargiarsenal

Once per turn: You can change this card to face-down Defense Position. When this card is flipped face-up: You can destroy any number of Spell/Trap Cards on the field, up to the number of other "Geargia" monsters you control.