Obscuring mist
druid utility 2
A thick fog coalesces from nowhere, hiding your allies.
Effect: The burst creates a zone of lightly obscured squares. The zone lasts until the end of its creator's next turn.
Sustain minor: The zone persists. The creator can increase the zone's size by 1, up to a maximum size of burst 5.
Obscuring mist is a 2nd-level druid daily utility power. It creates a zone of lightly obscured squares until the end of its creator's next turn. Its creator may take a minor action to sustain the zone. Each time the zone's creator sustains it, he or she may increase the zone's size.[PH2:86]
It is rated as an average choice, with it being useful to annoy ranged enemies or to place at the edge of two opposing fronts.