Illaoi 9.13 followup request

I think Illaoi is a bit too strong right now after the changes. These were good changes and they helped the champion a lot, but with a lot of unintuitive counterplay being removed I think she has room to have some more added in elsewhere. More importantly, I think there's a huge visual clarity loss in regards to a specific change; tentacles that die mid swing will now finish their attack before disappearing.

However the tentacle still displays its death animation and the tentacle slam hitbox completely disappears, which ends up tricking people in fights to take damage they weren't warned about adequately.

I had an idea for this that could solve both problems at once;

• Tentacles have one health point but have a brief timer delay before they die.

This change makes it a lot more tolerable to lane against Illaoi as a melee without attack resets or high AS since they don't spend as much time clearing tentacles (which is already a big risk if Illaoi is positioning well), as well as improving the visual clarity of the new feature on tentacles, since the death delay means they can finish any in-progress animations.