For whatever reason, the last arena game I played did not show up in the deck debugger. The enemy had an 8/1 minion and I had enough mana to play a rush minion that would have killed it. Instead, the bot ended the turn wasting all 5 of my mana which was enough to play the rush minion. The next turn the enemy put a divine shield on their 8/1 minion and that cost me the game :/