Diablo III - Runestones

xtensive character customization is one of the primary design goals for Diablo III. Players will have many ways to customize and build each of the five character classes, including charms, traits, enhancements, gems, armor, weapons, dyes, skills, and the feature we're highlighting in this article: runestones.

There are more than twenty skills per class, and a player can choose to access up to seven of those skills at any one time. Skills primarily allow characters to perform special attacks and cast spells, but they can also activate defensive abilities, summon minions, set traps, or allow the player to navigate the battlefield through quick travel and escape mechanics. While these skills always present players with plenty of tactical options for defending Sanctuary against the coming demonic invasion, runestones allow you to customize skills by changing the way they look and how they function.

There are five runestone types: Crimson, Indigo, Obsidian, Golden, and Alabaster. Each runestone affects skills differently. For example, adding a Crimson Runestone to a skill may enhance its damage, while adding an Alabaster Runestone might add a stun effect.

You’ll be able to place a runestone in each of your seven skills by opening the Skills screen. A rune’s specific effect on a skill is explained through a tooltip.

In addition to their color, runestones also come in different ranks of power; the higher a runestone’s rank, the more dramatic its effect on the skill. Experiment, and discover which skill and runestone combination best suits your personal playstyle.

To see examples of how different runestones enhance your various skills in
Diablo III, check out the skill videos below.

Whirlwind is an iconic Diablo II skill, wherein the barbarian spins furiously and damages any enemies in his path.

Crimson - Shoots bits of rock and gravel in every direction, dealing area effect damage.
Indigo - Barbarian spawns smaller whirlwinds which deal direct damage.
Obsidian - Provides the barbarian with immunity to immobilizing effects.
Golden - Reduced Fury cost.
Alabaster - Critical strikes confuse enemies, forcing them to attack their allies for a short time.

Sweeping Wind is a combo skill that lashes out against all enemies surrounding the monk, creating a vortex of damaging wind that increases in damage and radius across three stages.

Crimson - A flurry of blades increases Sweeping Wind's damage.
Indigo - Expands the area of effect and strikes enemies with additional fire-based attacks.
Obsidian - A persistent whirlwind surrounds the monk, dealing damage to any foes that come into contact.
Golden - Increases Spirit regeneration.
Alabaster - A powerful sandstorm billows with the monk's attacks, damaging enemies and knocking them back.

Ray of Frost is a wizard spell that damages and freezes enemies caught in the beam, slowing their movement and attack speed.

Crimson - Beam increases in damage the longer it remains in use, to a cap.
Indigo - Wizard is surrounded by a swirling vortex of sleet, damaging any foes that come into contact.
Obsidian - Decreases beam damage, but increases reduction in target movement and attack speed.
Golden - Arcane Power cost reduced.
Alabaster - Enemies slain by Ray of Frost have a chance to leave an area of ice on the ground where they die, damaging other enemies if they move through it.

Cluster Arrow is a powerful demon hunter tool, as it fires a cluster bomb which explodes on impact, releasing smaller bombs which explode shortly thereafter.

Crimson - Increases the damage of the explosion at the point of impact.
Indigo - Fires enemy-seeking missiles instead of grenades.
Obsidian - The Cluster Arrow is launched high into the air and rains down grenades.
Golden - Instead of grenades, the skill spawns shadow creatures that attack nearby enemies and leech life to the demon hunter.
Alabaster - Adds a stun effect to the grenade explosions.

Acid Cloud is a witch doctor skill that summons an acid-spewing spirit, raining caustic, skin-dissolving death on the unfortunate enemies below.

Crimson - Causes immediate damage instead of a damage over time effect.
Indigo - Increases area-of-effect radius.
Obsidian - Spawns slimes that attack nearby enemies.
Golden - Afflicts enemies with a disease effect that deals damage over time.
Alabaster - The witch doctor belches forth a directional pool of acid.

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