Tower Defense 1v1
Essentially, the idea was that you and a friend could join a game and be on opposing teams and battle each other. With reduced costs of towers and mobs, this could be a fun and new way to bring some more competition into games. If you're interested, click the spoiler for information of a potential game scenario.
Player 1 and Player 2 are looking to go "head to head" in a game of tower defense, but don't want to create an unfair advantage or potentially break any rules in a normal team game. Instead, Players 1 and 2 join a 1v1 game, in which they are able to place towers and send mobs to the opposing team's castle like any other tower defense. This gives the players an opportunity to battle each other, but also develop strategies that work for them and can be used in the game.
Everything in this gamemode would/could be reduced. The tower prices for example maybe being half of what they are in standard games. Map sizes would be smaller, cost of mobs could be gently reduced and the time of the game could be shortened. As mentioned above, this not only would create a place for players to go head to head, but could also be beneficial to players that maybe don't have as much experience with the gamemode, and could help them understand what towers do what and develop a sense for what to do in normal games.
This was just a quick post that I made up, so please feel free to make suggestions to alter it or let me know if it's a dumb idea. Thanks for reading!