Once the most feared soldier in the Confederate Army, now the most feared being who ever walked the Earth, The Saint sold his soul after a tragedy, so that he could continue to kill.
Little is known of the man who would one day become the Saint of Killers. There is rumor and legend, and only a few knew even some of the truth.
The Saint of Killers is virtually omnipotent, to far greater extents than is seen in comics especially for a non-cosmic character. He possesses a durability on par if not surpassing that of Superman, so powerful that it allowed him to be hit by a nuclear missile and remain unscathed and his clothes undamaged. He then simply shrugged it off and said, "Not enough gun."
He is also, and was before gaining his powers, a champion marksman. He is so quick on the draw that an ordinary man cannot even watch it happen. He also has perfect aim and through many odd circumstances he has still managed to always hit his desired target.
The Saint of Killers is also superhumanly strong as evidenced by the fact that he stood his ground when Cassidy crashed into him with his truck and he did not move an inch.
But the power of his which is stronger than all the others is his hatred. It was his deep hatred that extinguished the fires of Hell, resulting in him being expelled from it.
http://www.comicvine.com/saint-of-killers/29-10522/After losing her powers, Jubilee was infected with a "Vampire Virus" created by The Lord Of Vampires, Xarus (Son Of Dracula). She is later bitten by Xarus himself, completing her transformation.
While Jubilee no longer possesses her energy powers, she does posess trained fighting abilities and is a skilled gymnast. Though it has not been displayed in the comics, it would stand to reason that she now has the abilities of vampires from the Marvellore. These include superhuman strength (lift 10-20 times own weight), immunity to aging and disease, and the ability to instill a level of mind control in regular humans (varies on vampire and their power abilities). This also means she has to feed off human blood and stay out of the sunlight.