If u wana make a Nightmare deck, you need Ombre and Lelena, but get a leader as well, Hugo would do.
Seems like a pretty decent Nightmare deck if thats what you're trying to create. If so follow Lburna's advise concerning Ielena and Ombre.
Hugo ... umm... I think Timber would do you better with his ability " 1 Team Damage" so that you can better exploit your clans famous ablity " X life per damage".
I choose the attack way, timber is too weak (for now after the poll), he shud get a Mojo if he wants the gain life strategy.
Yeah, Nightmares are (in)famous for their "life per damage" ability with characters like Ielena, Mojo and Ambrose. Their bonus plus this ability is ... umm... fairly good for the ELOs.