What are your most favorite Pokemon sets for competitive battling so far?

I don't know if you guys know me or not, but I'm Gimmick Star! I play on Pokemon Showdown quite often, and ladder a bit on many different alts. My main tier is OU (OverUsed), and I play by Smogon tiers. I just wanted to know if you guys had any custom or gimmicky sets to post! Let me share a few of mine:

Use these two together:
Durant @ Leftovers
Trait: Truant
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SpAtk)
- Entrainment
- Hone Claws
- Baton Pass
- Protect

Dugtrio @ Leftovers
Trait: Arena Trap
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SpAtk)
- Protect
- Earthquake
- Stone Edge
- Hone Claws

Send out Durant, use Entrainment and give the opponent Truant, then immediately switch out to Dugtrio. If they don't switch out right then, you win. Here's how: Truant prevents the opponent from moving every other turn. On the turns they don't move, use Hone Claws on Dugtrio. When they do move, use Protect. Get the idea?

Weavile-Cobalion duo is very good for double battles.
Weavile uses Beat up on Cobalion with Justified, who sweeps off everyone with its maxed up attack. Both having max EVs in attack and speed. From the next turn Weavile can attack as well, making it impossible for the opponent to cause any major trouble.

Nice combo PokedudeOscar! Gotta try that one:)