The magic.rar contains a tar.gz and inside that a zip and inside that a rar file and goes on and on.it is a nested file.so I wrote a simple bash script to unzip them.
```
while :
do
find . -depth -name '*.zip' -exec unzip -n {} \; -delete
find . -depth -name '*.tar.gz' -exec tar zxf {} \; -delete
find . -depth -name '*.rar' -exec unrar x {} \; -delete
done
```
After running the bash script in the same directory as the rar file we get flag.txt. And when we open it,its language of pikachu. searched on google will find Pikalang cipher decoder
[Pikalang Interpreter](https://www.dcode.fr/pikalang-language)

Flag: `EHACON{n07_71r3d_0f_unz1pp1n6_huh!!!}`