Trouble with Final Two Slots

[KiddFrosty]

Hey guys, I'm just starting to get into VGC and I'm trying to make a team but I'm totally stumped on the final two slots. So far the team goes as follows:

Charizard @ Charizardite X
Ability: Blaze --> Tough Claws
EVs: 92 HP, 174 Atk, 244 Spe
Adamant Nature
- Protect
- Swords Dance
- Flare Blitz
- Dragon Claw
The EVs allow it to survive an unboosted Hydreigon's Draco Meteor before Mega Evolving.


Rotom-Wash @ Rocky Helmet
Ability: Levitate
EVs: 252 HP 252 SpD 4 SpA
Calm Nature
- Protect
- Will-O-Wisp
- Thunderbolt
- Hydro Pump
Mainly used to wall special attackers and burn Mega Kang and Mawile


Salamence @ Choice Scarf
Ability: Intimidate
EVs: 4 HP 252 SpA 252 Spe
Timid Nature
- Stone Edge
- Draco Meteor
- Flamethrower
- Rock Slide (Need suggestions for this move)
Mence has been used to take out most dragon threats to charizard or draw away possible ice and dragon type attacks. Intimidate support is useful as well.


Scizor @ Lum Berry
Ability: Adamant
EVs: 252 HP 252 Atk 4 Def
Adamant Nature
- Protect
- Swords Dance
- X-Scissor
- Bullet Punch
This is my fairy killer. I tend to use it to sweep as well once any fire type threats are taken care of.


After this I really don't know what to include in my team. I've been playing around with Gengar and Hariyama. From my games, I've found that I really need fake out support but don't know which fake out user would complement my team. The last slot is completely up for grabs. Any help would be greatly appreciated.