MK Morning Star doesn't protect you from piercing battle damage

Hello!

Thank you for making a bug report!

I have tested the scenario with another member. By standard means, the interaction works properly. You can see the replay I have created here:

spoiler

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

I’ll be taking a look at your replay and checking to see if there is anything different that could be affecting this.