[GAMEPLAY] Jarvan IV's E+Q combo has a number of devastating bugs.
Bug#1 Sometimes if you place Demacian Standard across some terrain and then Dragon Strike to it, Jarvan will get stuck in between the standard and the terrain for a few seconds ultimately rooting him there.
Bug#2 Sometimes his E+Q combo doesn't pull him to his standard even though it's in range and lined up precisely. Almost seems like if you try the combo too fast the command for pulling him is late and doesn't register in time.
Bug#3 The infamous Cataclysm Ultimate bug where Ulting an opposing player won't trap them. Letting them walk unconstrained through the wall.