The user snares the target with grass and trips it. The heavier the target, the greater the damage.
In-Depth Effect:
This attack's power is based on your target's weight. This alone determines how strong, or how weak the attack is going to be. With as little as 20 Base Power, it can go as high as 120, making it a very powerful attack if used against the right team. Below is the set up of how it is calculated