I know Gambit's usually a good guy, but has he ever charged / blown up a living creature?
Possibly an arch-nemesis that pushed him too far or some mindless beast?
Science Fiction & Fantasy Stack Exchange is a question and answer site for science fiction and fantasy enthusiasts. It only takes a minute to sign up.Sign up to join this community
Gambit battles Daken in DAKEN: DARK WOLVERINE (2010) #8, and although he doesn't fully blow him up, he blows the flesh off his arm...
Daken approaches them after they leave and gets into a bloody fight with X-23 in the streets before convincing her that they should work together to get Malcolm Colcord. As Daken meets with Colcord later in the night, Gambit and Laura attack them. While Laura is torturing Colcord, Daken approaches Gambit and offers him a partnership. Gambit turns him down as they have a vicious fight. Gambit winds up blowing the flesh off of Daken's arm before realizing the fight was a distraction as Colcord has knocked out X-23. Daken knocks Gambit out from behind.
This source found a lot of examples of Gambit charging organic material:
X-Men Legacy 214: Gambit charges Shaw
X-23's series issue 5 or 6: Gambit charges himself
Daken: Dark Wolverine #8: Gambit charges Daken's fist
X-Men Vol 3 #10: Gambit charges a lizard
There is two answers. One, during the Gambit solo series, an alternative Universe Gambit called New Son, an energy God version with his powers maxed out, has killed everybody on his Earth, because the powers flared out. The plot states this has happened in multiple universes.
The second answer is yes, some versions of Gambit have or atleast threatened to blow someone up. One Gambit killed Hammerhead by charging his metal skull. Another threatened to do this to Wolverine adamantium skeleton in a fight.