Diablo III lead designer Jay Wilson revealed the Skill Rune system of skill modification during his talk at BlizzCon. Skill Runes are skill-modifying items that are randomly dropped by monsters and used across all classes. They can be attached to each skill like an item, often completely changing the gameplay of each skill.
[video]13096[/video] The lead designer showed off the Teleport skill with a Striking rune, turning the spell into an offensive skill that can destroy enemies. The Skull of Flame skill was modified by the Multistrike Rune, which split the single fireball into multiple splashing attacks, to the crowd's enormous delight.
The Electrocute spell was modified with Multistrike, turning it into a Chain Lightning-esque spell. The Lethality rune added an explosion effect to Electrocute, splattering enemies on contact.
Wilson first took the crowd through the evolution of the current Diablo III skill system...
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