Are all these sentences correct:
1-He is dangerous, even when he is wounded.
2-He is dangerous, even when wounded.
3-He is dangerous, even wounded.
4-Even wounded, he is dangerous.
I think they all work. 3 is maybe a bit too condensed.
3 isn't very clear- it could mean the same as the others, but it could be to reinforce dangerous, which doesn't make a great deal of sense.