I think that the ancient trial is a very good addition to the game, well.. mostly. In my opinion its really hard to finish the whole thing alone I have reached wave 9 but couldn't complete it (the same with my friend), so I think implementing multiplayer into it would be much better, you can even make it a bit harder in multiplayer or can put a timer or even make it give less tokens. Another suggestion would be to divide up the tokens into the group or make it that the person with the most kills gets more tokens. Anyhow I would love that implemented into the game and I think it will attract more players into this mode.