|TM39 Rock Tomb|
|1||Pewter City Gym – Reward for defeating Gym Leader Brock||No|
You can only get TM39 Rock Tomb as a reward after defeating Gym Leader Brock at the Pewter City Gym. This is the first Gym you’ll challenge in your journey across Kanto.
Brock’s Gym is located in the center of Pewter City, and you can’t leave the city without defeating him. So you’ll win this TM as part of the main storyline after getting the Boulder Badge.
As for the move itself: Rock Tomb is a Rock-type move that deals damage at 50 base power, while also lowering the target’s speed by one stage.
TM39 Rock Tomb Location
Step 1: Starting at the entrance to Pewter City, head north on the city’s main road.
Step 2: Continue north on the road, passing both the Pokémon Center and the Poké Mart.
Step 3: After passing the Poké Center, turn west on the road in front of the Museum.
Step 4: Follow the road down as you make your way towards the Gym.
Step 5: Enter the Pewter City Gym to challenge Brock.
Step 6: After his defeat, Brock will reward you with TM39 Rock Tomb.
TM39 Rock Tomb Details + Uses
|Rock Tomb Move Details|
TM39 Rock Tomb is a Physical Rock-type move that deals 50 base damage. The move’s best advantage is that it slows the target’s speed by one stage.
Rock Tomb leaves a lot to be desired, specifically in its Accuracy.
Missing 1 out of 5 times can hamper your chances during battle, especially with such low base Power.
But with that said, it is one of the stronger TMs you’ll receive in the early game. So it might be useful in the first few cities – but Rock Tomb shouldn’t be a move you rely on long-term.
Although its secondary effect is where it might prove even more useful:
Lowering your opponent’s Speed can definitely come in handy. To get an idea of how Rock Tomb affects its target’s Speed by stage, take a look at the chart below:
If you’re able to land Rock Tomb twice, you’ll cut your target’s Speed stat in half.
So if it’s worth using in the early game, who should you teach Rock Tomb to?
Try teaching it to a Rock-type Pokémon you’ll be able to catch early on, such as Geodude or Onix. Therea re some other early game options too though – for example, Mankey and Machop can also learn Rock Tomb. But they won’t get a STAB boost with the move.