For Psychological Challenging or Heroic, there is a trick to win the Baron Brixius in 4 rounds :
You need : 2 crystallize level 2, retrograde at level 10, and high voltage. And a lot of PV.
First : high voltage. then 2 crystallize, and after retrograde. He lose 100000 pv. And you win.
Lol! This morning I thinked I'll not going to be first but.... I do the record ! 17th All-time :) 3644 meters! I am so happy :) First 2 days one after the others!!!!
And, I have 157820 petals! Lolz!