Introduction:

I love greedy control Priest decks, but I'm not a huge fan of Inner Fire schenanigans, so when I saw RegisKillbin's Lazul Greed Priest, I fell in love with it. However I found I was facing more and more warriors that would bleed me dry with bombs, mechs (particularly Dyn-o-matic), and rush from Dr. Boom, Mad Genius. Frustrated in particular with this one match-up I tweaked the deck several times until I arrived at this current iteration. Obviously it's never going to be the strongest deck in the meta, and it just dies to super-fast aggro like Token Druid. That said, I've had more success than I expected, and the games are incredibly fun. 

Update 6/19

Changes made: -2 Rusty Recycler, +1 Mass Resurrection, +1 Shadow Word: Pain

With the meta shift away from Warrior, Rusty Recycler just isn't cutting it; it's rare to have this and Zilliax together at a time that's useful. I've added a second Mass Resurrection for the late game and a Shadow Word: Pain to help survive until the late game. This moves the deck away from specifically targeting Warriors and more into a lots-of-resurrect control-until-they-concede type of deck. If your opponent is stubborn, it's safe to expect a long game.

SN1P-SNAP Update 6/6/19:

Changes made: -1 Mind Control, -1 Hecklebot, +1 Silence, +1 Mass Resurrection
Still evaluating: Harrison Jones, Archivist Elysiana

With all the new mechs decks in the meta, I've found that having a Silence in addition to two Mass Dispels has been really helpful in disrupting my opponent's gameplan. I've also swapped out Mind Control for Mass Resurrection as I found I was often just sitting on Mind Control and there's lots of taunts that can be resurrected. Getting more Convincing Infiltrators is so, so good. 

Inclusions:

Rusty Recycler - I wasn't sure what to expect with this card, but I've found that it's helped me get out of lethal range due to bombs a number of times. Having two copies of it has been a lot better than I thought. The fact that it's a mech is very helpful, both because of Zilliax and because it's immune to Dyn-o-matic. It's also been very helpful against decks with lots of small minions like Murloc Shaman or a Token Druid with unlucky draws.

Update: With the massive drop in Warriors, this card just doesn't work anymore.

Convincing Infiltrator - IMO this card is critical. So many of my games have ended with my opponent conceding after I've played (or resurrected) my 4th or 5th Convincing Infiltrator. Great card that forces awkward plays so often.

Seance - When facing warriors I try to save one Seance for either my own Archivist Elysiana or theirs. Against other decks such as Rogue, Mage, or Hunter I'll usually use it to get another copy of Convincing Infiltrator or (if desperate) another Zilliax for the heal.

Archivist Elysiana - The goal of this deck is to go for the long haul and Archivist Elysiana enables that. It's also useful in getting rid of bombs from a Bomb Warrior, although there's the danger of using it too early and hitting fatigue before them. That said, having Seance in hand can sometimes alleviate that stress.

Update: I'm facing a lot less Warriors after the update, so this card may not be necessary? I still have pretty decent success with it, so I'm leaving it in for now.

Catrina Muerte - Once the deck reaches the late game Catrina Muerte becomes stellar. With so many taunts in the graveyard there's a great chance she'll resurrect one of them, which can then easily spiral the game out of control for your opponent if they can't get to her. Against Warriors I do try to wait until at least one Brawl has been played. My wins typically end with a full board and a conceding opponent.

Chameleos and Madame Lazul - I know both these cards get a lot of hate but I love the craziness they open up. So often I'll get a pick from my opponent that flips the game on its head. Just having knowledge of what my opponent has in their hand is incredibly helpful. Whenever possible, I try to pull spells from my opponent so as to not mess up my graveyard.

Harrison Jones - Sometimes this card ends up taking space and I'm not a fan of adding it to the graveyard, but the draw it provides can be clutch in the right circumstances. Still evaluating.

Previously run /  possible tech options:

Mind Control - It can be a dead card if it's drawn too early, but it can be so good in the right situation (vs Mech Paladin, for example).

Hecklebot - It's another mech, another taunt, and the possibility of pulling valuable combo cards like Archivist Elysiana is great.

What didn't make the cut:

Da Undatakah  - After testing him in a number of games I finally decided to drop him from the deck, as more often than not I found that he was either a liability (two Tunnel Blaster deathrattles would wipe my board too), or just didn't pose enough threat the turn he was played and would get me killed.

[Hearthstone Card (Weaponized Piñata) Not Found] - This is a fun card, but I felt like it screwed up my resurrect pool too often and just did not add enough to justify inclusion.

Lazul's Scheme - I've have not had much luck with this card, and it ends up as a dead card in my hand more often than not, so I decided to cut it. 

Grave Horror - If the deck could survive long enough to play this, it would be great. Unfortunately the meta is just too fast and the spells in the deck are primarily reactionary, meaning this card would just end up taking valuable space.