Red style

When the sport first took off and began to spread across the world, the first style to form from it was the Red style, created and practiced mainly by athletes and ley folk who don't mess with magic all that much.
Red mancers fully embrace the dodgeball sport that is balloonomancy, and in the absence of fancy tricks or mystical powers, they rely primarily on just physical ability, effective strategy, and having sports grade balloons and equipment.
Gameplay
Red is a proactive style that wants to keep it's momentum and maintain steady pressure on the opponent. it's favors a more beatdown style of gameplay, with steady aggression while having as many threats ready to swing with on the board as possible,
Abilities like Strength+X and Speedy are common on red balloons to punch up against opposing threats and keep the heat on your rivals. abilities like Evasive and Intimidate are also common tools for weaving around blockers while being safe from retaliation.
Red also likes to restore breath cards to get more use out of it's resources in a single turn, and is fond of manipulating it's stamina line to set it up with stamina triggers to avoid attacks with.
Red is also the best at dodging out of all of the styles, sporting the most efficient evasion cards, a healthy number of actions with avoid triggers. and the ability to search for actions to stay on it's toes.