This is a team I put together based on some of my favorite pokemon. I'm needing a bit of help, as I'm struggling to get the team to function as I need it to, which is due to my lack of understanding of how the competitive side of the game works.
Gardevoir @ Gardevoirite
Ability: Trace
EVs: 232 SpA/ SpD 4 / 252 Spe
Timid Nature
- Hyper Voice
- Psyshock
- Focus Blast
- Will-O-Wisp
Tyranitar @ Choice Scarf
Ability: Sand Stream
Shiny: Yes
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Stone Edge
- Pursuit
- Superpower
- Crunch
Excadrill @ Life Orb
Ability: Sand Rush
Shiny: Yes
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Rock Slide
- Rapid Spin
Latios @ Life Orb
Ability: Levitate
Shiny: Yes
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 1 Atk / 30 Def / 30 SpA / 30 SpD / 30 Spe
- Draco Meteor
- Psyshock
- Hidden Power [Fighting]
- Defog
Tornadus-Therian @ Assault Vest
Ability: Regenerator
Shiny: Yes
EVs: 96 HP / 160 SpA / 252 Spe
Hasty Nature
- Hurricane
- Heatwave
- U-turn
- Knock Off
Heatran @ Air Balloon
Ability: Flash Fire
Shiny: Yes
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
- Lava Plume
- Toxic
- Taunt
- Stealth Rock
Okay, so I'm still fairly new to competitively playing pokemon, so this is gonna be poorly explained, I just know it.
I'm attempting to build a team focused on Mega Gardevoir. I've only played 3 games, all against the same person, I won 1, lost 2.
The purpose of this team is supposed to be clearing away the threats to Gardevoir so I can end the game with her. However, she keeps getting outsped by Mega Charizard X (Not surprised, she's not the fastest thing) some teams just have so many steel types or hard hitting physical pokemon that I rarely have any openings to use her.
How this is supposed to flow, is I use Heatran as a starter, setting up stealth rocks or using taunt to stop my opponent from doing the same, likely forcing a switch, so I can drop Toxic on something or setting my own Stealth Rocks up.
I use Tyranitar to take on things like Gengar, Metagross and Mega Charizard X and it's been doing that part well. So much so, it's usually what I end up relying on to try and win, instead of Gardevoir.
Excadrill was supposed to be my back up in the event T-Tar went down but often, I find Excadrill not helping, at all, looking for something to replace it. It's just not needed and I end up using it as a sacrifice, more than anything.
Tornadus-Therian Ferrothorn and certain fighting-types and other grass types is the main thing I have it, Knock Off and U-Turn make for some nice options, when they are needed.
Latios is there to deal with other Dragon types, Poison types and steel types that threaten Gardevoir as well as Hazards.
While I understand the point of your team, I do feel like it has some redundancies, namely Tornadus-T; I can't see the point of it on this team besides for creating momentum? But that isn't really the point of sand offence. It seems to be doing the same stuff as Latios for your team, as the AV set is namely there as a Keldeo switch in, something that Latios does just as well. I've noticed you are literally 6-0ed by Bisharp as well as Azu, who both get a kill as soon as they come in. I also don't think that Mega Gard fits particularly well on your team, as it just stacks weaknesses and you already have decent breakers.
I would actually recommend Mega-Venu and Specs Keldeo to fill those spots instead, Mega Venu helps deal with a Mega Manectric & Rotom-W weakness as well as two issues I mentioned before while Keldeo offers a similar source of offensive pressure to Mega-Gard while offering a more effective way of dealing with Bisharp and Weavile. A more offensive Venusaur could be used to keep with your offensive team style, possibly with sleep powder to help deal with things like Volcarona who could be an issue. But a more defensive one might be ideal, as it is needed for a consistent pivot for Scarf Lando and other previously mentioned threats.
I'd replace HP Fighting on Latios with Roost as it's a largely pointless coverage move due to you not wanting to stay in on the targets, who also shouldn't be switching in on Lati, Roost meanwhile allows it to defog consistently and helps to negate the damage from the sand. Remove Rapid Spin on Exca as you already have defog and aren't particularly weak to hazards; replace it with Swords Dance to give you a proper wincon. Replace the Air Balloon with Leftovers on Tran, who's going to be needed to take a fair few hits (from Scizor eg) and being able to keep up Rocks and stay healthy is paramount to Tran's success.
Let me know how it goes and if you want any other help feel free to ask!