Name: Pollinated Terrain
Type: Bug
Message: "The battlefield became covered with dusty pollen! "
Pollination Surge: Ribombee (Instead of Shield Dust)
Z Move: Sp. Def +1
Nature Power: Bug Buzz
Secret Power: Pollen Puff animation; 30% chance to lower target's special Defense by 1 Stage.
Effect 1: Bug-type moves from grounded Pokémon gain 50% power
Effect 2: Bullet Moves (such as those prevented by Bullet Proof) fail and instead damage the user by 1/8 their maximum HP
Learned by: Ribombee, Cutiefly, Combee, Victreebel, Lilligant, Sunflora, Venomoth, Bellosom,
Seed: Pollen Seed
Seed Effect: Special Defense +1
Competitive Use: Gives Bug-types the power they deserve, being the best Type there is, after all. Also prevents some good moves from being used for a bit, just, yknow, don't usem yourself during that time. This includes Focus Blast, Energy Ball, Seed Bomb, Gyro Ball, Sludge Bomb, and Shadow Ball. I probably missed some too. Also, in doubles, provides Pokémon with the Attack Nature Power the Power to heal their allies with Pollen Puff as well, if that matters as well.
Name: Night March Terrain
Type: Ghost
Message: "You can sense the Night Marchers haunting the battlefield!"
Night Surge: Gourgeist (Instead of Pickup)
Z Move: Sp. Atk +1
Nature Power: Shadow Ball
Secret Power: Shadow Ball animation; +25 power for each fainted ally with either the Night Surge ability or Night March Terrain attack.
Effect 1: Ghost-type moves from grounded Pokémon gain 50% power
Effect 2: After a grounded Pokemon faints, the next attack made by a grounded Pokémon from the side which received the fainted Pokémon has 1.5 power.
Learned by: Gourgeist, Punpkaboo, Joltik, Galvantula, Litwick, Lampent, Chandelure.
Seed: Night Seed
Seed Effect: Attack +1
Competitive Use: AKA Revenge Terrain, Night March Terrain allows you to harshly strike back after a Pokémon attacks, making revenge killers much better, especially if they are of the ghost Type. Your opponent also gets this effect, but that's to make it fair of course :/
Also a little thing to notice, since your opponent also can take advantage of this and revenge kill your revenge killer, you could find a way to run a protecting move on it.
(Also high-five to anyone who gets this reference, which I'm betting there is a few)