He was not stealing their power, nor pulling it in.

"You don't really believe a child could steal her mother's powers?"

Desperate enough to take away a primary protection for the city and steal its power?

Then you are not the German who has come to steal my power?

He takes the opportunity of being in contact with Nathan to steal his power and fly away.

To that end he began stealing power from others, specifically those whose Gift was even weaker than his.

He gave me instructions on how to entice you and steal your power.

The cloak was stealing power from life support, too.

They seem to think you will steal our power.

She demands to leave the group, so Parasite steals her powers.