The Coliseum is a deck-builder board game using cube cards for anything from 2 to 8 players. The players start with low-powered cards but will slowly unlock better cards as the tournament progresses while also leveling their character up to gain abilities that function both in combat and between games. Link to the visual spoiler:
https://www.cubetutor.com/visualspoiler/66309
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The tournament begins with each player getting three random Race cards to choose from. They pick one and will keep that race for the rest of the tournament. They could look like this

Most race has only a single ability that works during games and a focus ability that works outside games. Each race has some specific medium or high-powered cards attached that the player adds to their starting low-powered deck which then equals their starting 40 cards deck.
After the players are done with their race selection, the first game begins. All games are 1v1. After each game, all players will enter the board game part of the cube called the Kingdom.
The Kingdom is kind of a world map that all players have access to and it is the same for everyone. The Kingdom is a grid of 40 custom cards called buildings. The grid has 8 rows and 5 columns.

I am so, so sorry about the poor drawing
Better picture incoming soon!
Each square is a building. Buildings are face down unless they have been turned face up. Whenever a building is purchased, each adjacent face down building is turned face up in all four cross directions (up, down, left, right) but not diagonal. Players may usually own the same buildings and all players begin the tournament with two starting buildings. Let's take a look at the two starting buildings.


Castle gives gold which is the ressource you spend to buy new buildings. Each building costs 1 gold unless it says otherwise. When the players are in Kingdom they may buy new buildings for the gold they have and they can use those buildings to power grow in various ways. When a building becomes yours, you put your marker on it. Players may only buy buildings adjacent to buildings they already own.
Barracks is the way you're getting new cards. It uses the mana symbols in the upper right corner of your race + your class (Players can also get classes besides their race later in the tournament). The race examples above each have two land symbols and three colored symbols.
Players may activate each building they own once each Kingdom visit.
Whenever all players are done with Kingdom, the next game begins. The winner of the tournament is the last man standing. How many games you have to lose in order to get knocked out varies from tournament to tournament depending on what the players want.
https://www.cubetutor.com/visualspoiler/66309
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The tournament begins with each player getting three random Race cards to choose from. They pick one and will keep that race for the rest of the tournament. They could look like this



Most race has only a single ability that works during games and a focus ability that works outside games. Each race has some specific medium or high-powered cards attached that the player adds to their starting low-powered deck which then equals their starting 40 cards deck.
After the players are done with their race selection, the first game begins. All games are 1v1. After each game, all players will enter the board game part of the cube called the Kingdom.
The Kingdom is kind of a world map that all players have access to and it is the same for everyone. The Kingdom is a grid of 40 custom cards called buildings. The grid has 8 rows and 5 columns.

I am so, so sorry about the poor drawing
Each square is a building. Buildings are face down unless they have been turned face up. Whenever a building is purchased, each adjacent face down building is turned face up in all four cross directions (up, down, left, right) but not diagonal. Players may usually own the same buildings and all players begin the tournament with two starting buildings. Let's take a look at the two starting buildings.


Castle gives gold which is the ressource you spend to buy new buildings. Each building costs 1 gold unless it says otherwise. When the players are in Kingdom they may buy new buildings for the gold they have and they can use those buildings to power grow in various ways. When a building becomes yours, you put your marker on it. Players may only buy buildings adjacent to buildings they already own.
Barracks is the way you're getting new cards. It uses the mana symbols in the upper right corner of your race + your class (Players can also get classes besides their race later in the tournament). The race examples above each have two land symbols and three colored symbols.
Players may activate each building they own once each Kingdom visit.
Whenever all players are done with Kingdom, the next game begins. The winner of the tournament is the last man standing. How many games you have to lose in order to get knocked out varies from tournament to tournament depending on what the players want.