I wonder the same. I was at ~5100 last night. To complete the daily incubator I dropped 240 trophies this morning. All consecutive losses of -40 trophies, with one win of +20.
It usually happens when I face stronger teams than mine. Monsters of lvl 28-30 when my average team is 25.5 (max lvl 26- min lvl 24)
I contacted support and this is their response:
Thank you for writing in!
I’m happy to offer you assistance. Do you recall the approximate time and date this particular battle took place to help us investigate further?
Also, I can assure you that the game will match you against a player with a Power Score as close to yours as possible. Your Trophy count starts as a base to calculate your initial Power Score but then this Power Score increases whenever rarer creatures are added to your team or whenever you apply Stat Boosts to your creatures. The amount of trophies that you gain or lose after a match are also affected by this Power Score.
As for the trophy distribution, the amount of Trophies won or lost is determined solely by the difference between your Strike Team’s Power Score versus your opponent’s Power Score.
If you have any additional questions, comments or concerns please do let us know at any point!
Looking forward to your reply.
I provided further information, as of now I don’t have more information but I assume they are studying this case?
Something is not working as intended. I really hope they fix it soon, because it’s unsustainable.
Edit: as for the “power score”, none of my creatures goes beyond t6 at any stat. Whereas I’m facing dinos with t7 or even one t8 Magna and still loosing 40 trophies…