Thank you for all the information provided, this issue will be investigated!
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?
The Planeswalker you were using and its level.
Which Event and Node.
All cards in the deck and possible interactions that might have happened.