Verdant Cave

Upon entering Verdant Cave, Ilima will explain the trial: defeat three Pokémon in their dens and collect the Z-Crystal from the pedestal.

Head east to the first den. Interact with it to trigger a battle with a Lvl 11 Yungoos (Sun) or Rattata (Moon).

Follow the path east, pick up the Super Potion, and head to the next den. Interact with it, then interact with the den again for a berry.

Head west up the ramp. Go south to grab TM31 - Brick Break, then return north to the plank bridge.

Cross the bridge and head east to the wall. Go north and crawl through the large hole in the wall.

On the other side, pick up the Super Potion and drop down the ledge.

Check the den below where you dropped. The Pokémon will appear in the den above it.

Check the den above, then head west to the next den. Check it.

The Pokémon will appear back in the first den. Grab the X Defense, drop down the slope, and return to the first den.

As you approach the plank bridge, Team Skull Grunt will challenge you to a battle.

Team Skull Battle: Team Skull Grunt (Lvl 11 Drowzee). Reward: $352.

After the battle, return to the first den. The Pokémon will now attack. Defeat Lvl 11 Gumshoos (Sun) or Raticate (Moon).

Head to the back of the cave, past where the man was blocking your way.

Move to the sparkly pedestal and interact with it to take the Z-Crystal.

Totem Battle - Ultra Moon: Totem Raticate (Lvl 12, Dark/Normal) with Ally Rattata (Lvl 10). Totem Raticate's Defense rises at the start. It summons an ally at the end of its first turn. It holds a Pecha Berry.

Totem Battle - Ultra Sun: Totem Gumshoos (Lvl 12, Normal) with Ally Yungoos (Lvl 10). Totem Gumshoos' Defense rises at the start. It summons an ally at the end of its first turn. It holds a Pecha Berry.

After defeating the Totem Pokémon, Ilima congratulates you on completing the Trial and gives you Normalium Z, 10 Great Balls, and heals your Pokémon.

Ilima invites you to Route 3.

Return to the cave to meet Zossie and Dulse (Sun) or Phyco and Soliera (Moon) from the Ultra Recon Squad.

After you can ride Tauros, return to the final area of Verdant Cave. Use Tauros to break the boulders to reach TM46 - Thief.