CURIE

There appears to be a mistake in the Icy Field's readout.

It says that Rock moves are ADDED Ice type, meaning they should be Rock/Ice moves and do neutral damage to pure Ice types.

But I used Power Gem on a Beartic and it took "not very effective" damage, meaning the move must have been changed to pure Ice type.

If that's intentional, there should be an arrow and not a plus sign in the readout.