Movies Name? 2 families fight 4 300yrs 2 steal powers from each othr. Came out mayb 2-3 yrs go?

DO YOU KNOW THIS MOVIES NAME? Families fight for 300 years.. trying to steal each others powers or w/e????? when the movie came out it showed the guy jumping off teh cliff with his friend and the more they use there powers thefaster they will die or w/e
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