Notes & Combos
I implore everyone reading this, do not make this deck if you want to win in this event. It is absolutely terrible, and I don't know why it worked out.
With that out of the way, hi, I'm Jericho and I like using cheap jank in festivals. This is my list for the Xyz/Fusion event, Earth Machine Kashtira. What do the two engines in this cocoction have in common? Absolutely nothing. Do they even combo together? No. The only thing that would even tie these loose strings together, is small world, and the fact that Riseheart is both a level 4 and a level 7 for the purposes of xyz summoning.
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Small World
Small world ties the entire deck together. Using it, you can search for basically whatever you want using whatever you have in hand. Some noteable lines are any earth machine <-> maxx c <-> fenrir, ash <-> droll <-> unicorn, and ascended <-> nibiru <-> gold/silver gadget; basically the entire deck can be used in some capacity with Small World to grab your starters/engine pieces when your current hand isn't sufficient.
The Earth Machine engine for dummies
Whenever a colored gadget is summoned, it searches its corresponding color. This helps for deck thinning, ensuring you have discard fodder, and to keep the deck chugging along next turn when you summon another machine. Silver and Gold Gadget, along with with Anchor Drill, summon level 4 Machines from your hand. Anchor Drill specifically you want to open, because it leads into your draglubion plays, and arguably one of the most underrated cards in the game, Heart-eartH dragon.
The Kashtira engine for dummies
Summon big bunguses, make rank 7 bungus to continue to make big bunguses (bungai?). 1 fenrir 1 unicorn really hurts the kashtira engine in this event, I almost didn't play it but then I got a royal rare Kashtira Unicorn and knew it was meant to be.
Draglubion
Having an entire 5 cards of my extra deck locked behind opening exactly Infinitrack Anchor Drill + any gadget isn't optimal, but it works out just fine. Draglubion itself is a 3000/3000 that can't be targeted, and spits out 2 xyz monsters over the course of 2 turns. If you're going first, you'll want to go for Heart-earth; it's one of the most underrated cards in the game. It's a magical cylinder on legs. If it's not destroyed, during the end phase it banishes the opponent's ENTIRE field, except for face up continues spell/traps.