Board Thread:General Discussion/@comment-26006155-20190820122909/@comment-32182236-20190918131232

This was actually explicitly made clear in the actual battle.

To proceed in the battle, you have to mage Mad Dummy's magical attacks hit him. This deals damage that can be seen when looking at his HP bar, but there is no number seen. It seems you can only see the numbers when a PHYSICAL attack is dealt.