Thank you for the feedback, this issue will be investigated!
In order to help us, please provide the following information (only those you haven't provided yet) if you have it. You can PM me the answer if you prefer, or send it to Customer Support in-game:
Type and Subtype;
Is it related to trigger, mechanic, text, or other?
The Planeswalker you were using and its level.
All cards in the deck and possible interactions that might have happened.
We could not reproduce this issue. If you face it again please let us know.
In order to help us, please provide the following information if you have it (you can PM me the answer if you prefer, or send it to Customer Support in-game):
A screenshot of the battle log?
Which Event and Node.