Unity (Diablo III Skill)

Unity is a Monk passive skill, unlocked at level 64. It is a reincorporation of the pre-2.0 Guiding Light skill.

In-game
Predictably, this skill is most useful to a Monk in large multiplayer games: in a solo game or in a group of two players, most of the time, it can reach up to 10% (Mystic Ally + follower or second party member). Inna's Mantra set also benefits greatly from it.

Note that to reach the full 20% effect, at least one affected player must have a summoned minion, otherwise even in a full group the effect will not go above 15%.

Damage buff is not multiplicative to other similar modifiers.