1. I noticed today that all of the cards I seem to find while searching for the Elite Guard are ones I already have. Does anyone know what the game uses as a pool for the event? Stages tell you the card pool at the right side of the stage info, for instance. Just wondering if there was any way of knowing if they'll ever offer cards I still need to collect or not.

2. How are slayer cards decided for events? Do they use the same ones if that event comes around again? Are they randomly selected cards we can already get, or do they constantly introduce new cards each event?