>>58020084 (OP)Flying has Delta Stream
Ghost should have Gen 4 Fog back
Poison, Ground, and Steel have Entry Hazards
Dark should get Vile Terrain, which boosts Dark type moves and raises grounded pokémon's attack by 1 stage whenever they ko an opponent
Bug should get the Swarm weather, boosting bug type moves and damaging all non-bug types by the same amount as sandstorm
Dragon should get Draconic Terrain, boosting dragon type moves and reducing fairy type damage by 25%
Fighting should get the entry hazard Hidden Fists, acting as a fighting type stealth rock
Finally, Normal should get Normal Terrain. It boosts normal type moves, and also boosts STAB moves of any type.