Hello serebii people :3 I made this team recently for a region lock tourney and, i am thinking about taking a bit further (so pokemon out of unova can be used too now)
Team building process(no pictures prepare to be bored):
    Spoiler:- Team Building Process:

Dionysys (Ferrothorn) (M) @ Choice Band
Trait: Iron Barbs
EVs: 252 Atk / 248 HP / 8 SDef
Brave Nature
IVs: 0 Spd
- Gyro Ball
- Power Whip
- Bulldoze
- Spikes

Most people seeing this team expect a classic ferro lead thinking that they can set up on it. Along came choice banded sets. When reun or Victini sets up the trick room for ferro, it dishes out massive damage with ease. Stab Power Whip and Gyro ball both make for good moves on ferro in tr. Bulldoze is incase i see something like a magnezone on the otherteam or something else that resists ferro (such as an opposing one)

Athena (Reuniclus) (F) @ Life Orb
Trait: Magic Guard
EVs: 192 HP / 64 Def / 252 SAtk
Quiet Nature
IVs: 0 Spd
- Trick Room
- Psychic
- Focus Blast
- Shadow Ball

Rueniclus is my Trick room setter. It sets up trick room then, can either stand in and tank a hit or two (taking a pokemon or 2 with it) Then Flee into something more threatening such as conk or Haxorus. Psychic is good STAB and deals fair damage, Focus blast is to hit the pokemon that would otherwise destroy reun (Ferrothorns Gengars).

Ares (Conkeldurr) (M) @ Leftovers
Trait: Iron Fist
EVs: 120 HP / 252 Atk / 136 SDef
Brave Nature
IVs: 0 Spd
- Bulk Up
- Drain Punch
- Mach Punch
- Ice Punch

Conk is a Fantastic attacker, with low base speed and an extremely high base attack it makes the perfect trickroom candidate. It can set up bulk up easily while taking a hit or 2 from incoming pokemon the destroy everything with drain punch for recovery and ice punch. (thinking Payback > Machpunch(mach not needed in trick room))

Hephestus (Victini) @ Flame Plate
Trait: Victory Star
EVs: 252 Atk / 248 HP / 8 Def
Brave Nature
IVs: 0 Spd
- Trick Room
- V-create
- Bolt Strike
- Brick Break

Victini works quite well in trick room using high powered moves such as V-Create and Bolt Strike. V-Create lowers speed even further helping it go faster than other Ferros or slow pokemon that would otherwise put trick room as an advantage to the other team.

Hermes (Haxorus) (M) @ Life Orb
Trait: Mold Breaker
EVs: 36 HP / 252 Atk / 220 Def
Brave Nature
IVs: 0 Spd
- Swords Dance
- Outrage
- Earthquake
- Taunt

To be honest, I dont really know why i have haxorus on this team, its high attack helps a lot. With dropping its speed IVS and giving it a brave nature, swords dance works well with it. Use swords dance once and your pretty much set in Trick room.

Posiden (Jellicent) @ Choice Specs
Trait: Water Absorb
EVs: 252 HP / 252 SAtk / 4 SDef
Quiet Nature
IVs: 0 Spd
- Water Spout
- Shadow Ball
- Surf
- Energy Ball

Even though i barely have any hazards on using jeli as a spin blocker was a fun idea I thought. Also in trick room with dropped speed IVS Suprisingly A choiced jeli works well dishing out 50% on not very effective hits and sometimes, 100% on neutral hits.

Anyway I hope you like the team Any comments/critisizems would be apriciated. Thanks :3