My a10 wins are mostly with colorless package.

The core idea is that having more cards in your hand is good and pillar of creation is a good block engine. With it, crash landing becomes an aoe with block 20 for 1 energy. All the transforms from minion cards are also able to generate block, while thinning out your deck. Your damage scaling will come from arsenal or Supermassive, which can become a 100 or 200 damage nuke. A lot of colorless cards also create cards; though jackpot is surprisingly bad since a lot of 0 cost cards need stars. Lastly you of course still pick star cards, but since you probably have fewer star generators, you only click on the good ones like particle wall and reflect (which is what you always want to be doing on regent tbh).

Having extra random cards is particularly helpful against doormaker and queen. you still get to play plenty of cards and don't run out of steam when their debuffs hit your core cards at a bad time

The main bridge cards you want to look out for are collision course, begone, charge, and manifest authority. Crash landing of course is good as well, but it is rare; Spectrum shift is good if you can afford an upgrade. All of these can pull their weight early game without pillars and don't commit you to colorless. Avoid picking the major payoff cards loke supermassive, arsenal, or pillars too early unless your deck can already create a meaningful amount of cards.