Spacetime Support (Sandbox)

So this champion came about at the thought of making Overwatch's Soldier 76's ultimate a support spell in League of Legends. That is to say, an ability that prevents your ally from missing for a short window. When I presented this idea in the frame of "would being able to debuff an enemy with Braum's Unbreakable be a viable ability?" to Willbachbakal, he brought to my attention Mag from Warframe, who has an ability called Magnatize that redirects all bullets to the debuffed enemy. 
For literacy convenience, I'm going to use the placeholder name "Tempus".