Harry Potter and the cursed child:

When Draco accused Harry of keeping Albus and Scorpius apart, Harry-

A used the Pensieve to show Amos Diggory's hidden memory to Draco

B threatened to have Draco arrested for possessing a Time-Turner

C revealed Sibyll Trelawney's prophecy concerning Scorpius

D told Draco that Bane had sensed darkness around Albus​