Venusaur is an evolved Ivysaur - can go much higher statistics, but has the same strengths and weaknesses. It is a dual type of grass / poison Pokemon, and therefore can be very strong against water, dirt and rock Pokemon, but it has many shortcomings that it is not a good choice when the fight competent human players. If you are planning your Ivysaur evolve into a Venusaur remember going to learn some of their best moves, such as dust and Solar beam sleep much later than in its unevolved state - to wait until the last possible moment with the evolution. Some good techniques that can teach your Venusaur are toxic, rest and Mega Drain.
The fact that this is a dual rate Venusaur left open to all kinds of attacks. If you're against a Venusaur, remember that fire, ice, Flying, Bug, and psychological make every Pokemon exceptionally well against. While the damage caused by moves like psychic is not as high as when using it against a kind of pure poison, is to remove immediately all but the largest Venusaurs. The same is true with fire, ice and flying techniques. Just do not use water, electric, grass or against Fighting Pokemon and you can not lose.
The fact that this is a dual rate Venusaur left open to all kinds of attacks. If you're against a Venusaur, remember that fire, ice, Flying, Bug, and psychological make every Pokemon exceptionally well against. While the damage caused by moves like psychic is not as high as when using it against a kind of pure poison, is to remove immediately all but the largest Venusaurs. The same is true with fire, ice and flying techniques. Just do not use water, electric, grass or against Fighting Pokemon and you can not lose.