There is a lot of subtle humor in this week's chapter of Injustice. I'm not unused to comedy in Brian Buccellato scripts but it is is usually more overtly presented. There's a great irony that The World's Finest detective should prove incapable of deducing the birthday of his oldest ally. I find it hilarious that Alfred should keep holding this mystery over Bruce's head just to amuse himself and that Bruce still manages to find a way to fill Wayne Manor's kitchen with balloons from halfway around the world.
The action of the issue is ably illustrated by Superman: Lois and Clark artist Marco Santucci. Santucci draws a great fight sequence and the battle between Alfred and Zsasz is one of the most exciting this series has seen. Rex Lokus's colors provide the perfect finish to Santucci's pencils.