Versus Grass-type Pokemon
Double Damage : Fire, Ice, Poison, Flying, Bug
Normal Damage : Normal, Fighting, Psychic, Rock, Ghost, Dragon, Dark, Steel, Fairy
Half Damage : Water, Grass, Ground, Electric
No Damage : None
Okay, a grass-type gym! Let's do this! Make sure to take the good types of Pokemon listed above and avoid the bad types. When you're good to go; walk up to the first rope and interact with it. You'll climb up. From there head anti-clockwise. Stand at the start of the net and interact to jump across. You'll see a trainer here. Take him on.
Tip #033: Advantage Of Grass-types
It's a bit weird to praise Grass-types when you're currently facing them, but Grass-type Pokemon are adept at causing ailments with moves like Sleep Powder or Stun Spore . If these ailments are proving annoying, you may be interested to know that Grass-type Pokemon are themselves immune to Powder or Spore moves.
Gym Member Battle: Pokemon Ranger Chaise
Once he's defeated, climb up the nearby rope. Head clockwise over the next two nets and climb up the next rope. Head anti-clockwise over the next net and take the trainer on there if you want to.
Gym Member Battle: Pokemon Ranger Maurice
Head back clockwise over two nets. Now slide down to the level below. Head clockwise over the next net and you'll come upon the next trainer.
Gym Member Battle: Pokemon Ranger Brooke
Head up the rope then clockwise over the next net. Once again head up the next rope. From there head anti-clockwise over the next two nets. Another battle!
Gym Member Battle: Pokemon Ranger Twiggy
Climb up the nearby rope then head anti-clockwise over the next two nets and you'll appear in front of Leader Ramos. Make sure you're all healed up before the battle then take him on!
Gym Leader Battle! Leader Ramos
Note: He has two Hyper Potions at his disposal.
For Jumpluff and Weepinbell, avoid Bug-type Pokemon, because these two Pokemon's secondary types are strong versus Bug. Jumpluff won't like Ice-type moves, as they do quadruple damage to it. If you have any neutral Pokemon, watch their weight as Grass Knot does heavy damage against heavy Pokemon.
After defeating Ramos you'll get the Plant Badge . This means that any Pokémon up to Level 60 that you received in a trade will obey. Now you can use HM02 - Fly that you received earlier! You get TM86 - Grass Knot as a reward also. Finish speaking with him then slide down the slide nearby to get back to the entrance. Head back outside. Good job!
Let's heal back up and head out of town by the south exit, into Route 13 ! As you're leaving you'll receive a Holo Clip from Lysandre. After acting like a bit of a creeper for the hundredth time the clip of Lysandre will end. Onwards to Route 13! As you're heading through the gate you'll be stopped again (again!?).
This time it's Sycamore's assistants. At least you get something this time. They upgrade your Pokédex so that it now includes the Mountain Kalos Pokédex . Your Pokédex is fully upgraded now. Whoo!! After that they'll leave. Now actually head on through into the next route.