Simplify the following text for a Grade 12 native English-speaking person.
Original: In 1918 â `` 19 VÃ zina won ten games , and helped the Canadiens defeat the Ottawa Senators in the NHL playoffs for the ability to play for the Stanley Cup against the PCHA champion , the Seattle Metropolitans .
Simplified: In 1918 â `` 19 VÃ zina won 10 games and helped the Canadiens defeat the Ottawa Senators in the NHL playoffs for the right to play for the Stanley Cup against the PCHA champion , the Seattle Metropolitans .