Opher is a vendor in Ori and the Will of the Wisps. A monkey-like creature, he is a combat expert who teaches Ori new moves, and upgrades old ones, for a price. You will find this NPC at Wellspring Glades which is the third area you will explore. Check out our Abilities Sold by Opher guide to find out what he sells.
What it does: Set nearby enemies on fire.
Cost: 800 Spirit Light orbs
Upgraded: Charge Blaze (Charge up a flame to damage and set all enemies in sight on fire)
Cost: 1600 Spirit Light orbs
What it does: Spawn a spirit orb that attacks for you. (uses energy)
Cost: 800 Spirit Light orbs
Upgraded: Sentry Speed (increase Sentry attack speed)
Cost: 1600 Spirit Light orbs
What it does: Throw a star that returns to you.
Cost: 800 Spirit Light orbs
Upgraded: Spirit Star (tap to pause the Spirit Star's flight and spin it in place).
Cost: 1600 Spirit Light orbs
What it does: Pound foes with a strong, sweeping blow.
Cost: 800 Spirit Light orbs
Upgraded: Shock Smash (drop attacks with Spirit Smash create a shockwave)
Cost: 1200 Spirit Light orbs
What it does: Throw a powerful spear of light. Uses a large amount of Energy.
Cost: 800 Spirit Light orbs
Upgraded: Exploding Spike. Spike explodes on hit.
Cost: 1600 Spirit Light orbs
What it does: Lets you breathe underwater
Cost: 500 Spirit Light orbs
The first abilities you should invest your Spirit Light orbs when you first meet Opher are Spirit Smash and Spirit Star. Spirit Smash is a hamer of light that acts as Ori's heavy attack and you will need it to break enemy shells and shields as well as to crack open secret walls later in the game. Spirit Star is a throwing star that acts like a boomerang which is particularly useful against flying enemies and those that stick to walls.
Check out our How to get Abilities guide to find out how you can help Ori's progression in the game by equipping abilities.