To beat the last level I used Toothless, tripfire, flank-tanker, skyglow, light fury. Toothless at 5*,level 48, light fury just recently trained to 4*,level 1, and the rest at 3*, level 50, total bp 5638. Take down the 5* thunderclaw as fast as possible then have skyglow ready before I take the hits from the 5* hotburples, and have light fury remove its take less damage boost. Such long fight and need to worry if the abilities are not ready when needed, and the longer the fight, the higher chance of accidents. Four waves, such long fight, if one die, the team get broken. I would say I have about more than 50% chance of getting past it.
The second last one has only two waves so I can beat it with my usual team of bombwelter at 4*, level 51, Toothless, and stormfly, tripfire, sawmaw at maxed 3*. Try not give them too much chance of using their abilities. Same for the previous levels. Be a little more careful with those tuaterrors in the last third node as their ability can decrease your spirit.
I can feel it’s a lot harder than the events before. Hopefully the chapter 2 and 3 won’t be too hard.