Tinkered around with the decklist that top tops recently using the purple base. I have found that going all in on the rookie engine REALLY helps churn your lvl 5s and find your pieces While chipping away security.
This deck aims to drop Machinedramon ASAP and use attack of the heavy mobile to break boards. If machinedramon lives long enough to make it back to our turn, we chaosdramon and keep going. If it dies (which is very likely this meta) we don't mind because guess who's slamming another one? That's right. Us. The constant pressure of rush machines and ukkos is hard for even matchups that we struggle against to outpace. This is why we don't run chaos x antibody. Amazing card when you're trying to wall up, but that's not what we're going for here. I found when I tried it out of habit that it was just rotting in my hand or being tossed for attack of the heavy.
I would really recommend giving this deck a try.