The term "Battle of Ontario" is commonly used to describe ice hockey games played between the Toronto Maple Leafs and the Ottawa Senators. However, there are other phrases that can be used to describe this intense rivalry. One example is the "Battle for Ontario" which is another way to emphasize the competition between the two teams. Additionally, "Ontario Showdown" is also a fitting description as it highlights the anticipation and excitement leading up to the game. Other creative options might include "Ontario Derby", "Ontario Clash", or "Ontario Throwdown" to showcase the intense nature of the rivalry. Whichever term is used, it's clear that the games between these two rivals will always be intense and highly anticipated.