anyone else had cards not in there deck show up?

morgue427

i was playing the event as lily 2 and at the end of the game i ended up drawing a scour from existence, nice except i dont use it in black i have much better choices to kill creatures, it was a rough game a lot of re animating because of the relentless dead i was using as a blocker so i dont know if it was just memory bleed because the computer used it on me like 4 times in the match