Mantra of Retribution

Mantra of Retribution is a Mantra skill used by Monks in Diablo III. It resembles Paladin's Thorns Aura.

In-game
Passively chants a Mantra that causes the Monk and all allies within 60 yards deal 101% of the Monk's damage as Holy to attackers on each hit, even if that hit has been d or blocked. This damage has zero Proc Coefficient, however.

When activated, doubles the damage to 202% for 3 seconds.

Monks can only have one Mantra skill at a time, but effects of different Mantras (and even of different runes of the same Mantra from different Monks) stack.

Runes

 * Retaliation: damage type changes to Fire, increases damage to 202% (404% when activated).
 * Transgression: also passively increases attack speed by 10% for the Monk and affected allies.
 * Indignation: enemies damaged by Mantra of Retribution have a 20% chance to be stunned for 3 seconds.
 * Against All Odds: also gives a chance to restore 3 Spirit to the Monk when Mantra of Retribution deals damage. This chance starts off very high, but decreases if multiple frequent hits occur.
 * Collateral Damage: enemies damaged by Mantra of Retribution have a 75% chance to be hit with a blast instead of a single hit, suffering a feedback blast, dealing 101% damage as Holy to itself and nearby enemies.

Non-rune enhancements

 * Inna's Mantra Set (Set Bonus for 2 pieces): increases the base passive effect of the Mantra by 100%.
 * Inna's Mantra Set (Set Bonus for 4 pieces): grants basic passive effect of all four Mantras at a time.

Passives

 * Chant of Resonance: reduces Spirit cost of activating the Mantra by 50% and increases Spirit regeneration by 4 per second when the Monk has any Mantra skill.
 * Unity: for every ally (including the followers, but excluding the Monk) affected by the Mantra, grants the Monk +5% damage (stacking up to 20%); also grants +5% damage to all affected allies.

Trivia

 * In Diablo III game archives, this Mantra is dubbed "retribution aura", which is probably its original name.