Both of them

The gun went straight through Mister Sinister, blasting him into a million pieces. Jean Grey however was engulfed into a humming pink light before collapsing.

There was silence, naught but silence as you tried to breath. Relax as you tried to process what had just happened. Slowly though you started to get a grasp over your reality and began to crawl out of your piece of cover.

What you saw surprised you, it was Jean Grey kneeling on the floor, staring at you expectantly with wide, loving eyes. Her head cocked to one side as her hair flowed to the ground.

“So you have freed me Master. Freed me of my own will. Freed little miss Grey from her pitiful existence. Oh and the boy too as well” she explained gesturing to Mister Strange’s ashes.

“But, but what have I done?” you whimpered horrified by the gun in your hands.

“Oh dear Master. Do not be alarmed I am not your enemy” she reassured “I am Phoenix and I am your loyal ****. And between the two of us I can only imagine the power we could wield”