A fun, greedy deathrattle priest that has been doing good against warriors and has a chance against aggro.
Fast matchups: Holy Nova and Mass Hysteria are good keeps for board clears. Against token druid, Archmage Vargoth can be a good keep as it does well with Holy Nova to counter their Soul of the Forest turn. Forbidden Words and any mid-game taunt can also be good keeps.
Slow matchups: Mechanical Whelp, especially when combined with Shadowy Figure, Catrina Muerte and any taunt to challenge mid-game can be good keeps. Against extremely slow decks, such as control warrior, Mass Resurrection and Zerek's Cloning Gallery can be ok to keep as well. For extra value, Seance can be used on Catrina Muerte.
Against anti-control decks, such as mech hunter and mech paladin, these matchups can be hard but Mass Dispel can help out with the deathrattles.
One down side is that if you cast Zerek's Cloning Gallery and get Shadowy Figure from it, Catrina Muerte may summon just a 2/2. Against slower decks, you can try keeping at least one Shadowy Figure to reduce the chances of that happening.