Symmetra's Photon Barrier

During the next end step exile Symmetra's
Photon Barrier then return it to the battlefield
under its owner's control.
Equipped creature has, "{t}: If a source would
deal damage to you or a permanent you control,
prevent 4 of that damage. You gain life equal
to the damage prevented this way."
Equip {2}
"From light into being, my defenses are in place!"