User blog comment:Asfidyll/Nabria, Siren of the Tides/@comment-5412516-20131218071636/@comment-10253076-20131218095418

To all enemy champions by the maximum time yes or until reactivation. But take note that she freezes all action across the entire map, except for the charmed enemy champions who walk towards her. So effectively, yes they are being charmed, but no allied champion, minion or turret can do anything about it until Nabria unfreezes them. So it could work to her team's detriment or vice versa. Like in a teamfight, she can freeze all the action and change the situation of all fights across the map.