Another Unown G + Mr. Mime (MT)

[ThunderBlast]

This question is based off the conditions in my last post.

Given the conditions applied to Mr. Mime, if I attack with Trick Play and my opponent guesses the hidden coin correctly, does Unown G stop the self inflicted damage done to Mr. Mime?

If this is incorrect, would you please explain why.

Thank you,

:lightning

 

[PokePop]

No.
Unown G doesn't prevent damage.
And even if it did, it doesn't prevent anything from your own attacks. It was errata'd with that text correction.