Great episode. The awesome fights and great story aside, sometimes it's just the little things that make a show for me-- like when Nightwing is investigating the crime scene in Warworld, and there's a ladder right next to him, but he instead just decides to swan dive down instead because Dick's a circus acrobat.
Also,
Considering how sick I am of Blue Beetle taking over the show, I'm glad they made him a villain, so now I'm supposed to hate him.