As a body
Raniya, Miviox Maniac is somewhat lacking. As a special effect and a contract it is amazing. Contract is meh, unless you can couple it with deadly, otherwise you are giving up an extra turn for little gain. It is awesome for countering
Huntmaster Vikrum.
Substitute PRessing Darkness for Vara' Favor.
Pressing Darkness is not game changing. Being a spell instead of a fast spell seems to limit the impact significantly. IT will be a decent addition to lifeforce decks.