The classic Gadget archetype built for the modern era of the game. Grind your opponent out or quickly dispatch their life points with a swift Double Summon turn.
Trade with everything your opponent tries to do and you will end up with more cards left with all of you +1's. Hand traps galore, as well as more traditional forms of board interaction. Pair this with a massive toolbox of some of the best XYZ monsters in the game and you've got a formula for a potent anti-meta deck.
42 cards is the classic formula for a 6 gadget deck. It gives you the most consistency while also helping to spread your gadgets out more.