Hooray for cutting 70! By 0. But I hit 70!
Gyarados "IdrA" (Because it starts most of my matches with Taunt)
@ Leftovers
Intimidate
Adamant 252hp/252atk/4speed
23/13/22/x/30/23 (Wow, those are lazy IVs even by my low standards)
-Waterfall
-Return
-Taunt
-Dragon Dance
I open with this to get a good intimidate on whatever comes in, just on the offchance I need to switch on a physical hit. Intimidate is wonderful, as my Gyarados has lived thunderpunches from a dragonite as a result of its semi-bulky EV spread and intimidate. I also taunt all the common curse/stockpile/2 pure stalling meganiums/mono-attackers with nothing good that hits Gyarados. A pretty good number of battles start and end with Gyarados taunting some kind of pokemon that requires setting up, dragon dancing to +6/+6 with max hp lefties recovery and natural bulk, and sweeping. Gyarados is especially useful for taking out the enormous number of water pokemon that exist in the game because they rarely have anything to take out Gyarados.
Volcarona "JaeDong" (Really powerful, but often dies/gets haxed)
@ Life Orb
Flame Body
Modest 4hp/252spatk/252speed
24/x/5/27/29/31
-Flamethrower
-Bug Buzz
-Substitute
-Quiver Dance
Volcarona is able to set-up and sweep much fewer teams than Gyarados. However, it is crucial in taking out many threads to the rest of my team, such as pure ice pokemon, and pure-physical/mixed walls (metagross, scizor, skarmory, ferrothorn, registeel, Slowbro/king). Volcarona is often very useful as a revenge killer because its natural bulk allows it to take many neutral hits (even physical hits with Intimidate) and set up a single quiver dance. Just 1 quiver dance with life orb gives it the ability to OHKO a great number of pokemon. The Volcarona is also the backup to my final pokemon, a banded Garchomp, because frankly I like to Outrage everything. Of course, only steel types resist dragon moves, and steel types get stomped by Volcarona due to nearly every steel type not having a sub-type that resists fire, steel types tending to be much slower than Volcarona, and steel types tending to favor physical defense. Almost everything that can take a banded Outrage from Garchomp really well, gets MELTED by Volcarona. So most of the time if I am locked into outrage and the 2nd/3rd pokemon that comes in survives an Outrage and kills Garchomp, I can almost always go into Volcarona for the revenge without a problem.
Garchomp “Flash” (Beats everything easily)
@ Choice Band
Sand Veil
Jolly 4hp/252atk/252speed
21/31/2/x/8/31
-Outrage (aka skillrage)
-Earthquake
-Fire Fang
-Crunch
Garchomp absorbs electric/rock attacks aimed at Gyarados/Volcarona, and quite frankly it is able to out-speed AND OHKO a completely unfair number of pokemon with Outrage. Almost every time I swap into Garchomp to take a rock/electric/revenge kill, I just Outrage unless I know I'm going to get stalled or they're on their last pokemon and EQ will be super effective. I often don't risk getting locked into an Earthquake when a flying type pokemon can potentially switch in, because I have no ice/electric/rock moves on my entire team, and Volcarona is weak to Flying. So, my best option when a flying pokemon comes in on a banded EQ is to fodder out another pokemon and to come back in and Outrage anyway. So, I avoid the possible trouble and just Outrage constantly. It works. Frankly, banded Garchomp in Subway just steamrolls anything without strong bulk, and Garchomp is naturally bulky enough that it can take some good hits. And if anything goes wrong, Volcarona is usually just right to revenge kill.
This team basically just functions on the Gyarados/Volcarona set-up sweeps, the Gyarados/Garchomp defensive synergy, and the Garchomp/Volcarona offensive synergy. This is literally the very first streak I did on a team after I bred a Volcarona to use, so hopefully there’s more to come.
Also, props to the people to gave me some advice earlier in this thread. Earlier I asked for some advice with my 57-streak lucario/gyarados/garchomp team, and some of the replies got me thinking, which eventually lead to the idea to swap out Lucario for Volcarona, and to use Gyarados as a lead. So that's cool.