A game changer is:
A newly introduced element or factor that changes an existing situation or activity in a significant way.
One who steps up and makes a big Play that affects the outcome of the game.
A play at a pivotal moment in a game that results in victory.
A person who dramatically changes the course, strategy or character of something.
They change an existing situation or activity in a significant way.
To transform the accepted rules, processes, and management of something.
(References from NIV)
Galatians 3:24 (KJV)
John 12:46 (KJV)