

The final fight against the level 100 boss has two parts to it:

  1. Kirito and his usual group of friends go up against it alone.
  2. Asuna, and everyone else from ALO and GGO join in.

In the 1st half of the battle, Kirito and friends basically get annihilated.
In this first part, they observe that the boss will heal itself with a tree
and drop of water.

[![enter image description
here](https://i.stack.imgur.com/h2XgQ.png)](https://i.stack.imgur.com/h2XgQ.png)
[![enter image description
here](https://i.stack.imgur.com/wRZLF.png)](https://i.stack.imgur.com/wRZLF.png)
[![enter image description
here](https://i.stack.imgur.com/nkyGX.png)](https://i.stack.imgur.com/nkyGX.png)

* * *

In the 2nd half of the battle where everyone is in, the boss attempts to heal
itself again. But Asuna tells everyone to block the drop of water to stop the
healing.

[![enter image description
here](https://i.stack.imgur.com/B2j0c.png)](https://i.stack.imgur.com/B2j0c.png)
[![enter image description
here](https://i.stack.imgur.com/SRgdw.png)](https://i.stack.imgur.com/SRgdw.png)

Asuna wasn't there yet when the boss first healed itself. She wasn't watching
either as she was talking to Yuuna and not in full dive.

How did she know about the move to tell everyone to block it? Is this a plot
hole? Or is there an explanation to it?


CC BY-SA 4.0
2018-11-26T02:50:22.073
49849
2019-11-24T00:03:15.487
17
question
sword-art-online
In Sword Art Online Ordinal Scale, how does Asuna know about the boss' healing ability?


I think that stuff from anime like that may not have to make sense, because
her spontaneously noticing just basically was a way for Kirito to win... she
also may have just been an observant person?


CC BY-SA 4.0
2018-12-05T13:13:58.003
49982
2018-12-05T13:13:58.003
43765
49849
answer


If Asuna is well-learned (or more likely just because she played ALfheim
Online, whose lore fiddles with Norse mythology), she may have known that in
Norse mythology, the dew that falls from the tree Yggdrasil carries the power
of life. In that case, she must have connected the dots instantly after seeing
the tree and the dropping dew, and/or perhaps also after hearing the healing
SFX that started playing at the same time.

It is interesting to note that Yggdrasil in ALfheim Online shelters the
capital city of the game, and that Asuna was also a hostage at the top of
Yggrasil for a whole cour.

From [_Prose Edda/Gylfaginning,
16_](https://en.wikisource.org/wiki/Prose_Edda/Gylfaginning):

> An ash I know
>
> Hight Ygdrasil;
>
> A high, holy tree
>
> With white clay sprinkled.
>
> Thence comes the dews
>
> That fall in the dales.
>
> Green forever it stands
>
> Over Urd's fountain.
>
> The dew which falls on the earth from this tree men call honey-fall, and it
> is the food of bees.

From _Prose Edda/Gylfaginning, 58_ :

> In a place called Hodmimer's-hold are concealed two persons during Surt's
> fire, called Lif and Lifthraser. They feed on the morning dew. From these so
> numerous a race is descended that they fill the whole world with people, as
> is here said:
>
> Lif and Lifthraser Will lie hid
>
> In Hodmimer's-holt.
>
> The morning dew
>
> They have for food.
>
> From them are the races descended.


CC BY-SA 4.0
2019-10-24T23:39:55.260
55665
2019-10-24T23:56:39.530
2019-10-24T23:56:39.530
6391
6391
49849
answer