I missed the screenshot but I probobly annoyed this Druid so much:
He plays Onyixia with an empty board.
I use a Thoughtstolen Swipe on his face. Kills all the Whelps.
I use Shadow Word: Death on Onyxia.
The next turn I use mindgames and steal an Ironbark.
Preist in a nutshell. He be stealin' your spells; stealin' your cards; stealing your precious things.
And yes I made that godawful paint edit.
Anduin is actually Marisa.