IC. Well with my gacha pulls luck (at best single 5* more often than not a doupe of what I got from a good pull at start of the game) refilling stamina once per while when it would give me more runs of manyu/dragon runs does indeed seem like a nice idea. Close to leveling up to 85 and with it 300+ max stamina should come (299 atm ).
EDIT:
Damn I want to buy yours people luck, did 3 Ultimates in a row each spawned boss, giving up - going back to doing Advanced, at least will have more chances to spawn bonus that way and also get more exp/stamina. Thou its not like it matters I need only 209 more dumplings to hit 4k and Advanced map is now in progress hehe. Still I have around 50% spawn on Advanced and 25% spawn on Ultimate (did it 4 times, only once bonus spawned).
EDIT2: Level dinged and hit 4k dumplings, so I am done with this event and can prepare for next reissue or do other stuff hehe.