Stella Jahja & Tarrant Falcke give you the full and concise rules for Arena the Contest from Dragori Games, in The Dice Tower How to Play video series.
00:44 - Game overview
28:45 - Cooperative mode
39:15 - Epic campaign
For rules related clarifications and questions, updates, and everything else about Arena The Contest, please check out its page on BGG - https://www.boardgamegeek.com/boardgame/219217/arena-contest