32/31, I forgot it was going to start, so the boards were a little off. I played daily 3 board 100-120 energy, then I gave it all to the rival, (used all tools)
Interestingly, it gives us a new direction to complete the event, or not exactly to complete it, as the npc says: "your undeserved win"...
9 green upg. need -> 3 green (event quests) + 2 (1st rival) + 4 green (2000 score), then there is the golden orrery (you don't have to go for 5k score), + stage of ages..etc, Rival is pretty hard this time but worth it. (we are used to the fact that there is only one way to go through the event, so everyone annoyed) maybe it could be a little bit easier.
roughly, with double scores + keys, at the moment 3500 score, and 4,4k energy left (quests, daily, etc), 2,2k for next rival (will be there one more rival, right? if yes, in terms of energy, there won't be enough for the next one, so completing one will be enough, and should aim for the second, not the first, so that have enough energy stored from the missions by then)
and thus with the energy left should be quite close to the 5k point at the end