when angel of suffering, faces the planeswalker Angrath and his third ability is played the results is an endless loop you get pinged for 6 damage it triggers suffering which starts and endless gain 6 life .
Hello @Julie71,
Thank you for all the information provided, this issue will be investigated!
If you have any additional information that you consider relevant, please don’t hesitate to send me 
Rebeca.
Stop.
Please.