This jam has broken many jam rules so I won't try to count bodies anymore.
Godmoding is in short, making your character invunerable. Charles just did it here - in his defense, it was an attempt to stop the fight and get the jam on the track he intended, and not the usual godmoding - he thought, if he can't be killed, noone won't be trying to kill him anymore. I don't think it will work, jam got sidetracked in the first place because noone seems to care about Charles vision of the jam. (I mean, on one hand we've seen people repeatedly killing Charles or sinking the ship, on the other hand we've seen pirates attacking the ship - but did we see any passengers?
Short jam rulebook as I see it, is: everything's allowed as long as it's funny. That's why, among other reasons, godmoding is not allowed: saying "I am invunerable" is funny to noone but the one who did it; To others, it leads to a very boring jam.
If you're looking for a reason why War gets away with killing people so often, is he does it in a funny way - helped by his "reputation", which makes "killing" a running gag. Simple as that. Doesn't work always, but works more often than it would in someone else's hands.
There were things in this jam that I'd be unhappy to see in other jams, for instance, destroying a ship here is equal to destroying an universe - which is a regular no-no. But in this case we can make an exception. Why - see at the end of first paragraph.