Locust Swarm is an active attack spell in the Witch Doctor's Plague Skill Tree. This projectile emits a spray of green insects which swarm over anything in close range, like flying piranha. The locusts deal poison damage, and have the ability to jump from one infested monster to other nearby targets. (They do this with a green swooshing graphic, as seen here.
Each Locust Swarm seems to last for a set amount of time, but this duration is extended as they swarm to additional targets. It's possible for one swarm to spread to numerous targets, if they are in close proximity.
The information below is based on the playable demo build at BlizzCon 2008. It is subject to all kinds of reviews, changes, and balancing before release.
Contents
Prerequisites
There are no prerequisites to this skill.
Spell Base Effects/Costs
The costs and effects of this spell are currently unknown
Synergies
No skills are known to modify this spell via synergies.
Skill Rune Effects
The Rune effects for this skill are not known at this time.
Other Notes, and Speculation
Only 11 WD skills were revealed at Blizzcon, (more than 55 each were shown for the Wizard and Barbarian) so our knowledge of this character's abilities is much less extensive. Furthermore, all 11 skills were active skills, so we know nothing of the WD's passives and masteries.
Locusts that pass over the Witch Doctor's minions, Mongrels for instance, will turn the minions green while granting poison damage to all attacks, for as long as the minion persists. (Or until a different skill hits the minion, granting it a different sort of bonus damage.)
Gallery
Attacking Dark Cultist.