One battle is probably not enough to understand the enemy fully.
You gained the knowledge of the weasels, so now you know their weakness.
Catch the weasels again.
Then, you should know when they will fall.

If you learn about your opponents,
you will be able to understand many things.

It is troublesome to fight an enemy when you don't know its limit.
If you want to know your enemy's limit, get more knowledge, as you just did.

Completion Target: Black Spirit
- Kill Weasels and see if their HP appears

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Required actions:

1. Kill monsters (1):
   - Weasel