Hello. I am fairly new to this forum. But enough with introductions. What I have noticed about OU, is, generally, pokemon are chosen by how they fit on a team and whether they are immune/highly weak to a hazard.
Briefly, the hazards are Toxic Spikes, Spikes, and Stealth Rock. Toxic Spikes poisons all non-steel types that are grounded. Spikes does damage according to the number of spikes on the field. This also only affects grounded pokemon. Stealth Rock does damage to all pokemon based on their weakness/resistance to Rock.
Of these hazards, Stealth Rock is arguably the easiest to set and most effective at breaking sashes. It is also very influential in team building, as using a stealth rock weak pokemon like Volcarona requires a spinner on the team.
While team building, most teams would like to have hazards. Stall teams almost need hazards. Some pokemon are horribly crippled by hazards, making them seem less appealing. For instance, Volcarona is affected by all 3 hazards and is Stealth Rock weak. When team building a sun team with Volcarona, you must consider the impact of hazards on your poor moth.
Like many things, hazards can be avoided. However, the only way to avoid Stealth Rock is to have Magic Guard. Spikes and Toxic Spikes can be avoided by having Levitate, or being part Flying type. A Balloon grants you the ability to avoid these as well. Being part steel type protects you from Toxic Spikes. Grounded poison types absorb the Toxic Spikes.
Now, looking at the pokemon that get abilities/typing that helps them in OU. For Magic Guard we have Alakazam and Reuniclus. Alazakam loves the free Life Orb and as well as the ability to safely carry a Sash. Reuniclus uses Magic Guard to make it a lethal Stallbreaker. Levitators including Rotom-W, a very popular OU pokemon, the Lati-Twins, Gengar and Hydreigon. Pokemon who have good sets with Air Balloons consist of Heatran and Metagross. Finally, Flying types consist of Gyarados, Salamence, Dragonite, Skarmory, Gliscor, Tornadus, and Landorus.
Now only about half of those take super-effective damage from stealth rock. The ones that do include: Gyarados, Salamence, Dragonite and Tornadus. The first three have exceptional stats and abilities that make them worth the trouble of being weak to Stealth Rock. Many would argue that is a burden. Yet think of it this way; Would any of those (besides Gliscor)like to be poisoned. It would drastically cut their sweeping potential and arguably make stall's life much easier. With Dragonite, having Multiscale temporarily broken would be much better than the toxic poisoning it would suffer if not for it's part flying type.
So think about it. How do hazards affect your team building? Do you think that the flying type is a burden or a godsend?
Briefly, the hazards are Toxic Spikes, Spikes, and Stealth Rock. Toxic Spikes poisons all non-steel types that are grounded. Spikes does damage according to the number of spikes on the field. This also only affects grounded pokemon. Stealth Rock does damage to all pokemon based on their weakness/resistance to Rock.
Of these hazards, Stealth Rock is arguably the easiest to set and most effective at breaking sashes. It is also very influential in team building, as using a stealth rock weak pokemon like Volcarona requires a spinner on the team.
While team building, most teams would like to have hazards. Stall teams almost need hazards. Some pokemon are horribly crippled by hazards, making them seem less appealing. For instance, Volcarona is affected by all 3 hazards and is Stealth Rock weak. When team building a sun team with Volcarona, you must consider the impact of hazards on your poor moth.
Like many things, hazards can be avoided. However, the only way to avoid Stealth Rock is to have Magic Guard. Spikes and Toxic Spikes can be avoided by having Levitate, or being part Flying type. A Balloon grants you the ability to avoid these as well. Being part steel type protects you from Toxic Spikes. Grounded poison types absorb the Toxic Spikes.
Now, looking at the pokemon that get abilities/typing that helps them in OU. For Magic Guard we have Alakazam and Reuniclus. Alazakam loves the free Life Orb and as well as the ability to safely carry a Sash. Reuniclus uses Magic Guard to make it a lethal Stallbreaker. Levitators including Rotom-W, a very popular OU pokemon, the Lati-Twins, Gengar and Hydreigon. Pokemon who have good sets with Air Balloons consist of Heatran and Metagross. Finally, Flying types consist of Gyarados, Salamence, Dragonite, Skarmory, Gliscor, Tornadus, and Landorus.
Now only about half of those take super-effective damage from stealth rock. The ones that do include: Gyarados, Salamence, Dragonite and Tornadus. The first three have exceptional stats and abilities that make them worth the trouble of being weak to Stealth Rock. Many would argue that is a burden. Yet think of it this way; Would any of those (besides Gliscor)like to be poisoned. It would drastically cut their sweeping potential and arguably make stall's life much easier. With Dragonite, having Multiscale temporarily broken would be much better than the toxic poisoning it would suffer if not for it's part flying type.


So think about it. How do hazards affect your team building? Do you think that the flying type is a burden or a godsend?