Crash it into MARS. It will increase Mars mass and provide more water.
Mass
ceres 9.39 × 10^20 kg
Mars 6.417 × 10^23 kg
Earth 5.9722×10^24
Venus 4.868×10^24
Well shoot, that would only increase Mars to 6.426 x 10^23. We need to increase Mars by 9 times it current size.
We need to crash Mars into Venus. Along with 100 Ceres.
This teraforming is trickier than it looks.
“This teraforming is trickier than it looks.”
You just need a Scott’s rotary spreader and about 6 x 10^23 bags of Milorganite.