Given that no one respond to the post, I assume that people just don’t believe me or think that I missed out something.
I didn’t capture the fight myself but there is a video on a facebook fan page, which happens to show the bug.
As shown in the video, Suchutator used instant distraction on the Pteranodon, and the latter then use nullifying impact which dealt 984 damage.
Instant distraction reduces 90% of incoming damage. There is no way the original damage from Pteranodon is 9840 damage. I think it has only reduced around 50% for unknown reason. While the video owner’s Suchu survived, mine didn’t and costed me the fight.
The same thing also happens on Swap-in distraction, sometimes it just reduced not enough damage or seems to have no effect at all.
I hope the staff can really look into it because I have reported this as well in the bug forum but there wasn’t any reply and it seems to me that they think it’s not true or just don’t really care about it.