Card applies damage/effect twice on the same corner.
A few times I have had a card played against me that deals its damage/effect twice. The most recent is the Mymourn Banshees. I have only noticed it when it removes a spell. It does its damage with the +2 for removing a spell then it does it again but with out the +2 since there is no spell this time. I also had it happen with the Brute Smasha but that has happened maybe twice but usually when it is initially played.