TM121 is a Technical Machine in the Pokémon series, specifically used to teach the move "Heavy Slam" to Pokémon. Heavy Slam is a Steel-type physical move that deals variable damage based on the user's and the target's weight. The heavier the user compared to the target, the more damage Heavy Slam inflicts, making it particularly effective when used by heavy Pokémon like Steelix or Snorlax.
Effects: - Type: Steel - Category: Physical - Power: Variable (The move's power ranges between 40 and 120, depending on the weight difference) - Accuracy: 100% - PP: 10 (max 16) - Mechanics: The damage is calculated by comparing the user's weight to the target's weight using the following scale: - If the user's weight is less than or equal to 20% of the target's weight, the move's power is 40. - If the user's weight is
No effect information available.
No game descriptions available.