Provoke Opportunity Attacks: If you use a ranged
power while adjacent to an enemy, that enemy can
make an opportunity attack against you.
OPPORTUNITY ATTACK: OPPORTUNITY ACTION
✦ Melee Basic Attack: An opportunity attack is a
melee basic attack (page 287).
✦ Moving Provokes: If an enemy leaves a square
adjacent to you, you can make an opportunity attack
against that enemy. However, you can’t make one
if the enemy shifts or teleports or is forced to move
away by a pull, a push, or a slide.
✦ Ranged and Area Powers Provoke: If an enemy
adjacent to you uses a ranged power or an area
power, you can make an opportunity attack against
that enemy.
✦ One per Combatant’s Turn: You can take only one
opportunity action during another combatant’s turn,
but you can take any number during a round.
✦ Able to Attack: You can’t make an opportunity
attack unless you are able to make a melee basic
attack and you can see your enemy.
✦ Interrupts Target’s Action: An opportunity action
takes place before the target finishes its action.
After the opportunity attack, the creature resumes
its action. If the target is reduced to 0 hit points or
fewer by the opportunity attack, it can’t finish its
action because it’s dead or dying.
✦ Threatening Reach: Some creatures have an ability
called threatening reach. This lets them make opportunity
attacks against nonadjacent enemies. If an enemy
leaves a square that’s within the creature’s reach, or if
an enemy anywhere within the creature’s reach makes
a ranged attack or an area attack, the creature can
make an opportunity attack against that enemy.
DURATIONS
✦ Conditional Durations: These effects last until a
specified event occurs.
Until the Start of Your Next Turn: The effect ends
when your next turn starts.
Until the End of Your Next Turn: The effect ends
when your next turn ends.
Until the End of the Encounter: The effect ends
when you take a rest (short or extended) or after 5
minutes.
Save Ends: The effect ends when the target
makes a successful saving throw against it.
✦ Sustained Durations: An effect that has a “sustain
standard,” a “sustain move,” or a “sustain minor”
duration lasts as long as you sustain it. Starting on
the turn after you create an effect, you sustain the
effect by taking the indicated action: a standard
action, a move action, or a minor action. (You can
sustain an effect once per turn.) Some effects do
something, such as attack, when you sustain them.
A power’s description indicates what happens when
you sustain it or let it lapse. At the end of your turn, if
you haven’t spent the required action to sustain the
effect, the effect ends.
✦ Overlapping Durations: If a target is affected by
multiple powers that have the same effect but end
at different times, the effect with the most time
remaining applies.