From the publisher:

ARTS & SCIENCES 2-PACK
Valerie is a painter with emotional highs and lows. She's pretty good at drawing cards and keeping the pressure up. She can also get an extra burst of speed when she needs it the most. Geiger is a precise and logical watchmaker and a scientist who has time-bending abilities. He can stack his deck and save up for a really huge combo that's immune to the opponent's combo escapes.