Astral dust
Invoker Attack 17
Motes of silvery dust rain from above, burning whatever enemy they land on.
Encounter ✦ divine, fire, implement, radiant
Wisdom vs. Reflex
Close burst 3
Hit: 2d8 + Wisdom modifier fire and radiant damage. If the target doesn't move away from you before the end of its next turn, it takes 5 fire and radiant damage and a -2 penalty to all defenses until the end of your next turn.