You could say 'doumou na raion,' written: 獰猛なライオン
Lion féroce.
Brave or Fierce
the lioness, she has the ability to take control and will be fierce about the prey
a lion
Here are some Lion names translated to Swahili:Nguvu-StrenghJeraha-WoundGiza-DarkMahiri-SlyBaraka-Blessing
raion
there is no such thing as lightning lion. you can't just make up random phrases and expect them to be translated to japanese.
GAO
It is 'raion.'
'Shiroi raion.'
Akai raion.
'Guardian lion' may be translated as守護の獅子 (shugo no shishi) in Japanese.
You may say 'doumou na,' written: 獰猛な
The lion's roar was fierce, echoing through the jungle and striking fear into the hearts of all who heard it.
Ice means Aisu in Japanese and lion means Shishi. You can combine them anyway you like or maybe simply use it as "Aisu Shishi".
i would say lion.
The English word "fierce" is translated to Spanish as: "feroz"