One more thing to consider is that he willingly agreed to a 2v1. This could be just Tyce feeling invincible, but I think after his last loss to Commander Lazy Eye during the trial stream, I think he would recognize that he couldn't even beat Jace 1v1. I think the only reason he agreed to a 2v1 is because he never actually intended on fighting in the first place, I think he was literally just expecting Jace and Eli to drive up, see him in his super-spooky halloween costume with all his deadly ninjutsu weapons, and just drive away in fear. It certainly fits with his personality and how much of a blatant edgelord poser he is, as well as how much of a coward he is - no a-logging here, just an observation based on the fact that every time Jace tries to confront him, he literally flees the state.