From Destinypedia, the Destiny wiki
Lake of Shadows
High Durability Rapid Flight Midair Levitation Void Absorption shield Solar Necromantic Gaze Summon Shadow Thrall Reinforce Taken Barrier
The Taken Asphyxiator is a special Taken Wizard seen in the Lake of Shadows Strike, where the Asphyxiator was placed under the command of Grask, the Consumed and joined the Taken operation to corrupt the European Dead Zone's water supply. She would be the last means of defense against the Guardian Fireteam responsible for dismantling the operation.