Mr Sinister blackmailed Gambit into kidnapping the children of Scott Summers and Emma Frost as well as his own children that he conceived with Rogue. Mister Sinister revealed that Gambit is a clone of himself and that his powers are a variation of Cyclops'; as Mr. Sinister implanted some of Cyclop's DNA into Gambit in hopes of duplicating Cyclop's powers. Mr Sinister showed himself to be capable of turning into an exact duplicate of Gambit, a power he used to kill Rogue when the X-Men seek to rescue the kids. In the end, Mystique murdered Mr. Sinister, avenging her adopted daughter's death.
Powers and Abilities
Seemingly those of Nathaniel Essex (Earth-616)#Powers.