Blank a card in each opponent's deck.
When the homeless started going missing in Culverton, few people noticed and fewer still cared. After all, who pays attention to the face above the grimy upturned palm or cup of jingling coins?
But they soon had reason to care.
The Hat had chosen the dregs of society for his sinister experiments, turning them into hollow, soulless temporal anomalies. Their minds have been driven out of time itself, leaving only bizarre shells in their wake. What's left exists as gaping rents in the universe -- living vortexes that suck memory and emotion from anyone who draws near, allowing them to experience what it means to be truly empty.