Ladder Thief Priest

Original deck - https://outof.cards/hearthstone/decks/6271-the-supreme-pillage-of-uldum

Quick commentary: Just like the deck linked above, the suggested version aims to steal (copy) many of our opponents' threats while also building a big wall and generating a bigger Reno Jackson. The proposed decklist however runs more defensive tools and might be of interested to those of you, who want to play it on the ladder.

Card commentary:

Fourbidden words - Core card. It counters [Hearthstone Card (ship's canon) Not Found], Underbelly Angler, Mechwarper and other annoying threats you can think of.

Awaken, My Masters - Core card. Everyone needs Reno's effect.

Crystalline Oracle - Core card. Cheap deathrattle minion, that also makes our deck flavourful.

Dead Ringer - Core card. He acts as a small tutor for our deathrattles.

Shadow Visions - Core card. The spell is just too powerful (it generates copies of valuable AoEs and fetches them, when we really need them).

Spirit Lash - Good card. Mostly useful against odd paladin and some aggressive early-game turns (e.g. Southsea Deckhand/Buccaneer into Patches the Pirate).

Twilight's Call - Core card. It gives our deathrattles more value, it helps us complete the quest faster.

Wretched Reclaimer - Core card. He gives our deathrattles more value, helps us complete the quest faster and is bonkers in combination with Twilight's Call.

Zola the Gorgon - Replaceable card. You can run Seance instead, but I want my Shadow Visions to be really picky, when I'm fishing for AoEs or single-target removals.

Conjured Mirage - Core card (for now). She is perfectly fills the 4-mana slot and allows the priest player to enter turn 5, when the big defensive tools kick in. She's also good versus Burn Mage (Mirror Entity, Explosive Runes).

Psychopomp - Replaceable card. He gives our deathrattles more value and helps us complete the quest faster. You can use the card slot for a tech option of your choice.

Convincing Infiltrator - Core card. Spider Bomb proved to be useful and this has taunt as well.

Rotten Applebaum - Core card (especially, when burn mage is popular).

Mass Hysteria - Core card. The AoE is cheap and can oftentimes clear the stickiest of boards.

Entomb - Replaceable card. Tech against big priest and some mid-range (even shamen) decks.

Lightbomb - Good card. It can deal with big boards in the mid-game.

Sylvanas Windrunner - Good, but easily replacable card (depending on what you face). Synergies with Psychopomp, Twilight's Call (+ Spirit Lash) and Wretched Reclaimer. Mostly good versus Big Priest and some mid-range decks. If you are constantly seeing aggro, add a Khartut Defender. If a single Defender dies, two copies can appear from Twilight's Call, which will grant you 12 health and block 4 physical attacks.

Archbishop Benedictus - Core card, but not essentially good. He provides our deck with the most needed value and delays the fatigue, which makes him an auto-win against control. The problem is, that control isn't that common and he might feel slow sometimes. If you want to replace him, you are better off playing another deck.

Psychic Scream - Core card. It can deal with all kinds of threats and can dilute the opponent's deck with bad minions.

N'Zoth, the Corruptor - Core card. He gives our deathrattles more value and helps us complete the quest faster.