User blog comment:Deathkin12/Champion concept: Zelos, the Blade of Ionia/@comment-92.6.159.217-20120823140540/@comment-92.6.159.217-20120823150231

I see. Well, I don't, I didn't get that it had area of effect damage.

How about this:

Zelos appears at his target and summons a circle blades above them. After 1 second, or instantly upon landing a basic attack, the blades to surge downwards drawing an hourglass through his enemy: dealing physical damage and half that to nearby enemies. Affected enemies take bonus damage per Hidden Blades stack.
 * Physical Damage: 200 / 350/ 500 (+1.0 per bonus attack damage)
 * Splash Damage: 100 / 175 / 250 (+0.5 per bonus attack damage)
 * Bonus Damage: 20 / 30 / 40 (+0.2 per bonus attack damage) per Hidden Blade