Slambo: Tackling sumo wrestling with cards, addition, and subtraction!

About Slambo!, from BoardGameGeek:

Hakkeyoi, Nokotta! In this hand management game, try to force your opponent to go above 10 or below 0 to achieve a Slambo! Stay balanced or get slammed! Each card you play raises or lowers the balance by the number printed on the card. Blue cards raise it, and red cards lower it. Can you stay in the fight long enough to win? -description from the designer