A deck that continues to plague my thoughts whenever I have a spare moment, I've made a few changes to the deck as I've continued to tinker with it. Some new routes have been mapped out and Superheavy Samurai Wagon can now act as another starter for the primary combo, but this deck still has to run Ancient Gear Box to function and has trouble going second.
Without further ado, here's the new combo.
Starting Hand: Machina Gearframe (1)
1. Normal Summon Machina Gearframe (1). Trigger Gearframe's effect, add Machina Unclaspare. Trigger Unclaspare's effect, Special Summon itself (you are now locked into Machine Monsters). Trigger Unclaspare's effect, send Machina Ruinforce (or Citadel, or Fortress depending on context).
2. Xyz Summon Gear Gigant X (1) using Gearframe (1) and Unclaspare. Detach Gearframe (1) to activate Gigant (1)'s effect; add Superheavy Samurai Motorbike.
3. Discard Bike to activate its effect; add Superheavy Samurai Prodigy Wakaushi. Activate Wakaushi in the Pendulum Zone. Activate Wakaushi's Pendulum effect; place Superheavy Samurai Monk Big Benkei in your other Pendulum Zone and Special Summon Wakaushi. Activate Benkei's Pendulum effect; add Superheavy Samurai Soulpeacemaker. Activate Peacemaker's effect, targeting Wakaushi; equip Peacemaker. Activate Peacemaker's effect, tributing Wakaushi (Wakaushi is sent face-up to the Extra Deck and Peacemaker is destroyed); Special Summon Superheavy Samurai Wagon from your Deck (only trigger its on-summon effect if it's in Attack Position). Activate Wagon's effect; switch it to Attack Position and add Superheavy Samurai Soulgaia Booster. Activate Gaia's effect, targeting Wagon; equip Gaia. Activate Gaia's effect; Special Summon itself.
4. Xyz Summon Gear Gigant X (2) using Wagon and Gaia. Detach Gaia to activate Gigant (2)'s effect; add Symphonic Warrior Guitaar. Activate Guitaar in your remaining Pendulum Zone.
5. Link Summon Ancient Gear Ballista using Gigant (1) and Gigant (2). Trigger Ballista's effect; add Ancient Gear Box. Trigger Box's effect; add Infinitrack Tunneller. Activate Guitaar's Pendulum Effect by discarding Box; Special Summon Symphonic Warrior Miccs (you can now conduct and additional Normal Summon/Set this turn).
6. Link Summon Qliphort Genius using Ballista and Miccs.
7. Pendulum Summon Wakaushi and Miccs from your Extra Deck to the Main Monster Zones Genius points to, as well as Tunneller from your hand. Trigger Genius' effect; add Therion "King" Regulus. Activate Regulus' effect, targeting Gearframe (1); Special Summon Regulus and equip it with Gearframe (1). Activate Gearframe (1)'s effect; Special Summon itself.
8. Xyz Summon Infinitrack River Stormer using Tunneller and Miccs. Detach Tunneller to activate River Stormer's effect; add Machina Irradiator.
9. Xyz Summon Gear Gigant X (3) using Wakaushi and Gearframe (1). Detach Gearframe (1) to activate Gigant (3)'s effect; add Machine Gearframe (2).
10. Link Summon Amphibious Swarmship Amblowhale using Genius, Gigant (3) and River Stormer. Banish Tunneller to activate its effect, targeting Gigant (1), Gigant (2), Gigant (3), Ballista, and Genius; "shuffle them into the deck," then draw two cards.
11. Normal Summon Machina Gearframe (2). Trigger Gearframe (2)'s effect, adding Machina Citadel.
12. Link Summon Qliphort Genius using Amblowhale and Gearframe (2).
13. Discard Citadel to activate Irradiator's effect; Special Summon Irradiator to a Main Monster Zone Genius does not point to. Banish Gearframe (1), Unclaspare, and Box to Special Summon Ruinforce to a Main Monster Zone Genius points to. Activate Irradiator's effect, targeting Ruinforce; Special Summon Citadel to a Main Monster Zone Genius does not point to, then destroy Ruinforce. Trigger Ruinforce's effect; Special Summon the banished Gearframe (1) and Unclaspare. Trigger Genius' effect; add Heavy Freight Train Derricrane.
14. Xyz Summon Gear Gigant X (1) using Gearframe (1) and Unclaspare. Detach Gearframe (1) to activate Gigant (1)'s effect; add Flying Pegasus Railroad Stampede.
15. Link Summon Platinum Gadget using Genius and Irradiator. Activate Gadget's effect; Special Summon Pegasus. Trigger Pegasus' effect, targeting Irradiator; Special Summon Irradiator. Activate Pegasus' effect, targeting Irradiator; change Pegasus' level to 8.
16. Xyz Summon Dingirsu, the Orcust of the Evening Star. Trigger Dingirsu's effect; attach the banished Tunneller to Dingirsu.
17. Tribute Platinum Gadget to activate River Stormer's effect; Special Summon River Stormer.
18. Link Summon Double-Headed Anger Knuckle using Gigant (1) and River Stormer. Trigger Derricrane's effect; Special Summon Derricrane.
19. Banish Gearframe (1), Gearframe (2) and Unclaspare to Special Summon Ruinforce.
20. Xyz Summon Number 81: Superdreadnought Rail Cannon Super Dora using Ruinforce and Derricrane.
End-board:
Draw 2, Pendulum Scales, Number 81: Superdreadnought Rail Cannon Super Dora with Heavy Freight Train Derricrane attached, Machina Citadel, Dingirsu, the Orcust of the Evening Start with Infinitrack Tunneller attached, Therion "King" Regulus, Double-Headed Anger Knuckle.