Plante is considered one of the most important inventors in ice hockey. Most importantly, Plante was the first NHL goaltender to always wear mask when playing. With the help of other experts, he made and tested many versions of the goalie mask, including a version of today's mask/helmet combination. Plante was the first goaltender to regularly play the puck outside his crease in support of his team's defencemen, and often instructed his teammates from behind the play, as the goaltender usually has the best view of the game.