Sol's Laser

Sol's Laser is a powerful plant acquired at the start of the second branch of Unknown Time. It fires UV-rich lasers that light zombies on fire and deals (non-burning) splash damage to nearby zombies. Tapping it will give it a short 25% damage boost at the expense of 50 sun. Note that this plant isn't just a fusion of Laser Bean and Magnifying Grass, although it is similar.