Captain Nova First Appearance: Secret Avengers #4
Quick Plot Overview: The opening issues display the black ops type work and being proactive about known threats and clean them up, they are in direct opposition to a group called the "Shadow Council" seemingly led by Nick Fury. In one such plot they find a dangerous artifact, the "Tentacle Crown." After some research the group finds a link to the Roxxon Corporation, which leads to investigations of a mining site on Mars. Richard Rider (Nova) is on the case, and in his investigations he finds another crown, the "Serpent Crown." The crown possesses Nova, but he is pursued by a guardian of the crown claiming to be a collective named the "Archon" who was created by the Watchers. The possessed Nova directs Shadow Council agents into unearthing a primordial evil. Steve Rogers, with the help of the Xandarian Worldmind, temporarily gains the Nova Force to take out the Serpent Crown/Nova.
Green Lantern Batman First Appearance: Green Lantern #9
Quick Plot Overview: The Tattooed Man gets a reboot in this issue as he terrorizes Gotham City. Hal and Salaak discuss Hal's ugly past and what it means for him in the eyes of the other Green Lanterns. And Hal must team up with Batman in order to stop Tattooed Man and his ink spawned devilish creations. After Tattooed Man is beaten Hal offers Bruce his ring to try and help him finally overcome his parents death. However, seeing as this tragedy was what created Batman, he returns the ring after a minute or so.
SageMode: I personally would love to see this battle, especially since these two have taken down opponents much powerful than they are, it would be interesting to see what they can do in this battle with the addition of super-powered abilities. What do yall think?