After you hit lvl 40, you should really start grinding satge 11/12 to get advanced secret gardens
Otherwise, you'll spend way too much gold just for upgrading

I'm level 40 and have reached Mission level 11. Should I stay here for a bit and spam 11-1 for manyus? All my characters are level 34-36. Is there a specific level in Mission 11 or 12 that is nice to spam like 2-1?

You can get ampys from 12, not sure about 11.

12-3 is nice to spam.

Is there a particular reason 12-3 is preferred to 12-4? Easier to get all the chests?

12-3 gives more gold (2k vs 1.3k), while 12-4 has a better EXP/stam ratio (13.7 vs 13.5)

And yeah, I find that it's easier to get all the chest in 12-3 than in 12-4

I'm struggling a little at level 39 with mission 11, I can clear it but I really feel I need to build some depth to my teams

Is spamming 1-3 for gardens probably my best option?

The math is right. but the statement related to that is wrong. its 52% chance that you wouldn't get a 5*+. so its actually 48% chance you would get a 5*+ from the pull.

Originally Posted by Unregistered

The math is right. but the statement related to that is wrong. its 52% chance that you wouldn't get a 5*+. so its actually 48% chance you would get a 5*+ from the pull.

Chances of getting no 5 or 6 stars in 1 roll: 1 - .06 - .005 = .935
Chances of getting no 5 or 6 stars in 11 rolls: .935 ^ 11 = .477
Chances of getting at least 1 5 or 6 star in 11 rolls: 1 - .477 = 0.523

Not sure what's wrong there.