Here are some details. A lot of people are wondering if there are bugs or if they are exploiting the challenges, so here's what you should expect (You aren't cheating!) 
- Pets damage increased by 20x
- Click damage increased by 25x
- Auto damage increased by 5x
- Attack delays set to 0.25s (nearly 8x faster than base attack speeds)
- Base timer set to 10 minutes
- Splat cooldown reduced to 7% of regular cooldown time
- Splat damage increased by 20x