Cast or Pass 0.15

I put in some nerfs to make the Golem, Green Slime, and Snowmancer easier. Snowball also does less damage now. There is a new guaranteed event at room 15 called the trial event, which will allow the player to choose a challenge over their next 3 combats. If they are successful, they will get a blessing that gives them a passive buff for the rest of the run.