Sadly, we all know a big character is going to die, but who do you think should be the one to inflict this blow to Team Arrow, Malcolm or Damien Darhk? A villains greatness is defined by several things, with one of them being the amount of damage and pain they to cause to the heroes and their world. Malcolm has already caused more pain for Oliver and his team than any other villain has. Not even Slade or Ra's al Ghul have come close to him in that regard. Does he really need another W on the villainous win column? It would make sense in a way as he is Green Arrow's greatest villain and arch nemesis, but like I said, he has already caused enough damage.
Damien Darhk needs to cause Oliver some great pain and do something big to hurt him and his team. He needs it much more than Malcolm does, in order for him to go down as a great Arrow villain. He will always be remembered for being funny, entertaining, resourceful, powerful and smart (as well as superbly acted), but will it really count for much if he does not use all of this to do something significant, that will have a lasting effect on the show for Oliver and his team? Personally, I think it should be Damien who deals the killing blow? It is Malcolm who breaks him out of prison, so he will also have a hand in it.
Damien Darhk needs to cause Oliver some great pain and do something big to hurt him and his team. He needs it much more than Malcolm does, in order for him to go down as a great Arrow villain. He will always be remembered for being funny, entertaining, resourceful, powerful and smart (as well as superbly acted), but will it really count for much if he does not use all of this to do something significant, that will have a lasting effect on the show for Oliver and his team? Personally, I think it should be Damien who deals the killing blow? It is Malcolm who breaks him out of prison, so he will also have a hand in it.