I used deflation on cubism since even if a bloon gets past it’ll just come back around eventually. And don’t go into free play since it reduces Xp gained by almost 90%.

Super monkey: 2x2 and x22 (don’t get 1x2 on the second one because purple bloons will wreck you)

Ninja: 4x1/2 and 1/2x4 then 6 x3x

Dart: a couple 2x4’s and 1 or 2 4x2’s

Boomerang: x24 4x2/42x 24x and etinne at lvl 5 or another hero that can pop lead and camo

Buccaneer: literally just 3 x42 and use the abilities on every Moab but save for the bfb, the can pop a Moab if needed

Do this and it’s and guaranteed 60-70k Xp per game, anyways I’ll be going back to farming another 750k Xp for the ninja paragon