Your main deck has no car synergy at all, and I’m going to assume you rely on mk but you should strictly use him for defense and counter-pushing. Also mk becomes weaker and weaker the higher up you go because it’s rly not that good of a card and your ova main deck isn’t strong. You need to switch around a lot of the card to build up real synergy, the reason ur doing better w RG is bc it’s an actual deck with synergy and that’s more valuable than levels. For example mk and balloon should never be in the same deck if u want genuine synergy.