Sony Online Entertainment announced the fourth downloadable content pack for DC Universe Online, titled "The Last Laugh." It's due for PC and PlayStation 3 in June, and puts the focus squarely on PvP fights. Also, by the name, you could probably guess which major DC villain plays a role.

The DLC will include a new weapon called "The Shield," which can be used to bash opponents, or thrown at them not unlike a certain Marvel hero. You can also take part in Safe House and Headquarters battles, which are 4v4 and 8v8, respectively. The HQ battle promises a player reward for completion. The DLC also adds two light-powered Legends for PvP battles: Kilowog the Green Lantern on the hero side, and Amon Sur of the Sinestro Corps for the villains.

A few new mission types will be available too, largely prompted by the Joker. These include Bomb Disposal, using a special robot to solve encrypted e-mail terminals, Graviton Techonlogy Recovery, retrieving code fragments to rebuild the teleporter codes, and Rescue, in which heroes rescue hostages and villains freeing arrested criminals.

A price wasn't announced, but it's likely to cost $9.99 like the others. If you're a Legendary Member, though, you snag it for free.

"The Last Laugh is the first DLC that we've created that focuses almost entirely on player versus player battles, and it adds an exciting new element as some of DC's greatest heroes and villains join to fight alongside you," said creative director Jens Andersen and the press release. "Players will have even more opportunities to prove to the world whether heroes or villains will be triumphant."