Jungo have some the best 2 stars and is generally good all around.
I imagine it possibly working out for Montana but probably best with cards with solid power and decent life gap capabilities.
I tried a 2 star Vortex only + 17 star Frozen deck with decent results in my opinion, but have to agree with Forky Bard on the duo difficulty.
@j00p It could be your talent/time spent that brought you the score, not the deck. Can't objectively say that a deck is successful based on small sample results alone.
Lionel Messi can still score a goal wearing flip-flops, but it doesn't mean that wearing them is a good idea.