And at this moment, the Intermediate Whirlwind that had broken out of its shell was growing at a speed visible to the naked eye.
Feeling the power of the Intermediate Whirlwind, Klein couldn't help but nod.
'It's indeed useful. Furthermore, after I improved it, not only did I consume less magic, but I also grew much faster. I just don't know how powerful it is?'
Klein never let go of the Whirlwind spell.
This was because the benefits of the Whirlwind spell were very obvious to Klein.
Not only did it help Klein deal with many powerful enemies, such as the three at the platinum treasure chest, the Traitor Zekos, and so on, but it also helped him obtain nearly a million demon beasts.
Most importantly, it helped Klein obtain many treasures that ordinary people couldn't imagine.
For example, the original magic core, the Blood Essence Medicine, and so on.