Arena
The arena can be pvp or pvpve depending on rules you wish to follow.
In general it will be pvp with small squads 3 characters, if wanting to run one you can set goals and add NPC enemies.
The crowd can be used and roll a d6 every turn to determine what they do. Such as blood thirst.
Every few rounds of battle roll a d6 for a modifier traps etc.
***More to come***