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Hearthstone Puzzle Lab: Blast Dr. Boom Lethal puzzle solutions and answers walkthrough

Our complete guide to beating the Hearthstone Puzzle Lab

Ed Thorn avatar
Guide by Ed Thorn Reviews Editor
Updated on

Looking for Blast Dr. Boom Lethal puzzle solutions? The first block of Hearthstone puzzles curated by Dr. Boom starts off deceptively simple, but soon explodes into a nightmare-ish pair of puzzles that require you to flood the doctor's board with Northshire Clerics and use card draw to Fatigue him. Handily though, we've got guides to solving each one.

On this page, we'll break down simple, step-by-step solutions for each of Dr. Boom's Lethal puzzles, helping you deal damage to the renowned doctor himself.

All Dr. Boom puzzles

  1. Dr. Boom Lethal Puzzle Solutions (current page)
  2. Dr. Boom Mirror Puzzle Solutions
  3. Dr. Boom Board Clear Puzzle Solutions
  4. Dr. Boom Survival Puzzle Solutions
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1-4 Of Pirates And Patrons

  1. Play the following cards in this exact order: Super Soldier, Frothing Berserker, Fiery War Axe and both Dread Corsair minions
  2. Send the Dread Corsairs into the Sludge Belcher blocking the way, then hit the ooze that spawns with a Grim Patron. This will spawn another of these multiplying minions.
  3. Now create more Grim Patron minions using Whirlwind, before hitting one of the full Health Patrons with Slam
  4. Once you've set the board up in this way, you should find yourself with enough damage to kill Dr. Boom (don't forget to swing with your weapon!)

2-4 Erratic Explosive

  1. Get Wild Pyromancer out onto the board and the use Power Word: Tentacles on it. This will trigger a bit of damage from the Pyromancer onto Spud M.E.
  2. Play Circle of Healing to get more damage rolling, then cast Recharge to get back the Mana you need
  3. Put Violet Teacher onto the board and then cast Holy Smite on the Spud M.E.
  4. To create lethal damage, play both of the Defile spells. The chain reaction takes a while to play out but definitely works!

3-4 Never Go Full Northshire

  1. Give the AI's Northshire Cleric Power Word: Shield which is guaranteed to bring Wild Pyromancer into your hand
  2. Shuffle three extra copies of Northshire Cleric into your deck with Lab Recruiter.
  3. Put Wild Pyromancer onto the board and then target Lab Recruiter with your Elven Archer
  4. Special card Battery Pack can now be used to refresh your Mana reserves and trigger the Pyromancer damage effect.
  5. Play Fungal Enchanter and place all the Northshire Cleric minions you get out onto the board
  6. Use Binding Heal on any target you wish except the AI's damaged Cleric and then activate The Swap to switch the board around
  7. Give your remaining Northshire Cleric Treachery and then drop Circle of Healing to complete the puzzle (you might want to grab a cup of coffee first - this is going to take a while to play out)

4-4 Full Northshire

  1. No you're not seeing things, the challenge is back in a slightly new form!
  2. First create a pair of Northshire Cleric minions for your deck by using Undercover Reporter. Note that this card puts those copies on the top of your deck pile
  3. Play Elven Archer, targeting anything you please, and then give it Power Word: Shield. This will bring a Northshire Cleric off the top of your deck
  4. Put this new Cleric into play and then use your Hero Power to restore the minion you damaged with the Elven Archer. Put the new Cleric you draw into onto the board
  5. Now you can get your Mana back by playing Battery Pack
  6. Use The Swap to change the board state around, put Wild Pyromancer out as well, and then gift the AI your final Northshire Cleric using Treachery
  7. Fungal Enchanter is the first card you use to inflict massive Fatigue damage, but you're not done yet. Use Binding Heal on the 1 / 1 on the other side of the board, then hit Circle of Healing.
  8. Make another cup of coffee...

That wraps up our Dr. Boom Lethal puzzle solutions. For help with more Dr. Boom puzzles, head on over to the next page of our Hearthstone Puzzle Lab walkthrough.