Unnerve multiple KOs interaction

When a spread move that hits all targets like Earthquake is used and KOes multiple targets, KOs are resolved from ally -> opponent's left -> opponent's right. After the Unnerve Pokemon (Calyrex) leaves the field, Unnerve is immediately turned off; it doesn't wait until the other faints resolve. Now, the damage on both Incineroar and Amoonguss has already been calculated by this point. However, the game explicitly only deals damage *up to* that Pokemon's current HP, even if the amount of damage would otherwise be higher.

Because animations are turned *on*, all the Pokemon have their HP at 0 already. But you can tell what's going on a bit easier with animations off - there, the Berries triggers first on Incineroar and Amoonguss, THEN Incineroar takes 35 damage and Amoonguss takes 29 damage. Note that the Pokemon with the Berry MUST already be at low enough HP that it would otherwise have already triggered the Berry. But with animations on, this happens *backwards*. So it looks as if the Pokemon is at 0 HP, then eats its Berry from the grave!

So to summarize what's happening:
1. Damage is calculated on all targets
2. Calyrex faints, removing Unnerve
3. Sitrus and Figy Berry are available for activation again and restore the user's HP
4. Damage is dealt

It's just that with animations on, steps 3 and 4 are swapped, which makes it look very strange!

Credit to battle mechanics researcher Zaggyo (https://twitter.com/zakocky) for discovering this interaction in Gen 7!

FAQs:
Q) If Calyrex was switched with Incineroar or Amoonguss, would this also still work?
A) No, because the ally faints first. The Unnerve Pokemon has to be KOed first.

Q) Do Incineroar and Amoonguss already have to be at low enough HP for the Berry to activate?
A) Yes, that's a necessary condition. You couldn't do this from full HP.

Q) What if it was Calyrex-Ice and slower than Incineroar or Amoonguss or something else? Does it depend on Speed?
A) Doesn't matter, multiple faints from a spread move always go by ally -> opponent's left -> opponent's right. Has nothing to do with Speed.