Venusaur’s Mega Stone (Venusaurite) can be found on the ground near the southeast side of Route 119. Its exact location is within one of the tall grass patches directly south of a cabin.
However, you can only find this mega stone in that location after you defeat/catch Kyogre or Groudon in the Cave of Origin.
Venusaurite Location (Step-by-Step)
Most Mega Stones, including Venusaur’s Mega Stone, can be obtained only after defeating or capturing Kyogre or Groudon in the Cave of Origin. This major event occurs just before you can challenge the eighth and final Gym.
But there’s another thing to consider here:
If you fly to Route 119, you’ll arrive at the northern section of the route.
Since the Mega Stone is located in the southeast section of the route, it’s actually closer to fly back to Route 118 instead.
So fly to Route 118’s route sign to get started:
Step 1: Start by heading north to enter Route 119’s south entrance.
Step 2: Once you’re on Route 119, go northeast, passing a Triathlete NPC.
Step 3: As rain begins to fall, continue eastward, avoiding the tall grass for now.
Step 4: At the end of the path, proceed north into the tall grass. You should pass by a bug catcher as you enter the grass.
Step 5: When you see a cabin up ahead, look for an empty spot in the grass with a sparkling object on the ground.
This is the Venusaurite, and it’ll be near the edge of the grassy area just south of the log cabin.
Is Mega Venusaur Worth Using?
Mega Venusaur can be a strong choice in battles, including both competitive battles and regular playthroughs of OR/AS. This is thanks to its remarkable bulk and defensive typing, enabling it to counter specific sweepers.
Its Thick Fat ability also effectively reduces its number of weaknesses.
Although it has access to recovery moves like Synthesis and Giga Drain, Mega Venusaur struggles against Steel-types, which resist most of its moves.
Tip: Mega Venusaur’s new ability is Thick Fat, which halves the damage it takes from Fire- and Ice-type moves.
If you want to use Mega Venusaur then consider the following pros & cons:
- Impressive bulk and resistances. With base defenses that both reach at least 120 and multiple resistances, Mega Venusaur can effectively wall many threats in competitive battles.
- Thick Fat ability. Its new ability essentially removes its Fire and Ice weaknesses, further improving its defensive capabilities.
- Access to a range of recovery moves. Synthesis, Giga Drain, and Leech Seed allow Mega Venusaur to tank even more hits – all while dealing damage at the same time with a couple moves.
- Vulnerable before Mega Evolving. Venusaur needs to Mega Evolve before gaining its Thick Fat ability. This can initially leave it exposed to Fire- and Ice-type Pokémon that can outspeed it on the first turn.
- Passive defensive set. Its usual defensive set can be too passive, allowing Steel-types to switch in freely and exploit it. Your only option against Steel-types is Hidden Power Fire, which isn’t ideal.