New Items

 Evolution Items: 

Rockruff Band: Used to Evolve Rockruff. Location: Rockruff Ranch

Link Stone: Used to Evolve trade-evolution Pokemon. Location: Driftvel City Shop

Ice Stone: Used to Evolve Vulpix and Sandshrew. Location: Rockruff Ranch and Driftvel City Shop

 Fossils: 

Jaw Fossil: Used to get Tyrunt. Location: Twist Mountain

Sail Fossil: Used to get Amaura. Location: Twist Mountain

Mega Stones:

Mega Stones can be obtained by in-game events and by using dive to find them underwater

Aerodactylite: Used to Mega Evolve Aerodactyl

Ampharosite: Used to Mega Evolve Ampharos

Banettite: Used to Mega Evolve Banette

Blastoisinite: Used to Mega Evolve Aerodactyl

Blazikenite: Used to Mega Evolve Blaziken

Cameruptite: Used to Mega Evolve Camperupt

Charizardite X: Used to Mega Evolve Charizard

Charizardite Y: Used to Mega Evolve Charizard

Galladite: Used to Mega Evolve Gallade

Garchompite: Used to Mega Evolve Garchomp

Gardevoirite: Used to Mega Evolve Gardevoir

Houndoominite: Used to Mega Evolve Houndoom

Lucarionite: Used to Mega Evolve Lucario

Metagrossite: Used to Mega Evolve Metagross

Pidgeotite: Used to Mega Evolve Pidgeot

Sablenite: Used to Mega Evolve Sableye

Sceptilite: Used to Mega Evolve Sceptile

Sharpedonite: Used to Mega Evolve Sharpedo

Venusaurite: Used to Mega Evolve Venusaur