well nour i have played with gadgets a little, i would say you may like to max the offering sine that card makes the gadgets go really crazy extreme xyz summon, also try pot of avarice so you can continue getting gadgets like crazy, in the extra take out the ninja one since it seems impossible to get as you run no warrior type monsters, since using the tinplate fish and iron call maybe you can try inferno reckless summon to an instant ilumiknight, disigma, color ruler or ouroboros hope this helps you