Reanimate even more powerful Bloon servants to obliterate the enemy.
~ BTD6 description of Prince of Darkness

Prince of Darkness (sometimes shortened to POD or PoD) is the final upgrade in Path 3 of the Wizard Monkey in BTD6. It is the replacement for the Soulbind upgrade in Version 2.0. The Prince of Darkness upgrade allows the Wizard Monkey to summon undead MOABs and BFBs along with regular undead bloons, and the Wizard's personal graveyard capacity expands from 500 to 2000. In addition, all undead bloons, including his own undead bloons, will gain +1 damage and +50% duration lifespan. The Prince of Darkness gains a massive range and attack speed buff in addition to the aforementioned benefits.

It costs $20,400 on Easy, $24,000 on Medium, $25,920 on Hard, and $28,800 on Impoppable.


Compared to its previous upgrade, the Prince has a greater range for its reanimation attacks, in addition to its capability to summon stronger undead bloons. The Prince also gains a buff to its main attack speed to four times faster than the base tower, which can help in taking down enough lesser bloons to summon undead M.O.A.B. Class Bloons. Shimmer also gains an attack speed buff to decamo bloons twice as fast.

In addition to his own extra benefits is a buff to all Necromancers, including himself. Each undead bloon gains +1 damage and +50% duration lifespan. Each Undead Bloon lasts for 15.0s instead of 10.0s.

Undead MOABs can deal 40 damage per hit and can deal damage to up to 20 bloons before reaching the pop limit or 30-second expiry (actually 20 seconds, but the +50% lifespan buff increases that value) but move at a similar speed to regular undead bloons. Undead MOABs consume 20 units from the Prince of Darkness's personal graveyard. This attack occurs every 3.0s, and only requires the personal graveyard to possess least 20 units before spawning.

Undead BFBs, on the other hand, move as fast as Undead MOABs but deal 100 damage per hit and can deal damage to up to 50 bloons before reaching the pop limit but last for a shorter time of 20 seconds (again, actually 13.3 seconds, but increased due to the same lifespan buff). Undead BFBs consume 50 units from the Prince of Darkness's personal graveyard, and it can only be spawned once the graveyard is at least 1450. This attack occurs every 3.0s, and it can replace the usual spawning of Undead MOABs.

Like Necromancers, Prince of Darkness stores popped bloons into a personal graveyard, local to each Prince of Darkness (if possible to have more than one Prince of Darkness), and can store accumulated bloons popped for up to 2 rounds. Undead Bloons are spawned +20% faster for every 100 graveyard units, capped at 500 graveyard units, for up to +100% faster. Each personal graveyard stores up to 2000 accumulated pops. Undead MOABs and Undead BFBs consume more pops from the graveyard than regular bloons, though.


  • Because the Prince of Darkness cannot handle large amounts of RBE, it is mostly used against DDTs which it has a surprising amount of popping power against.
  • 2-0-5 Prince of Darkness is generally better than 0-2-5, but there is no essential benefit for crosspathing the Prince of Darkness undead bloon attacks as of now, unless on a map with major Line of Sight issues such as on Flooded Valley. In such cases, 1-0-5 Prince of Darkness (or preferably 2-0-5 Prince of Darkness) is superior.

Update HistoryEdit

  • Change balloon First released, superseded Soulbind upgrade.
  • Buff Zombie MOABs and Zombie BFBs now do more damage (20 → 40 for Zombie MOABs, 20 → 100 for Zombie BFBs)
  • Buff Prince of Darkness now gives +1 damage to all undead bloons spawned from any Necromancer, including himself
  • Buff Prince of Darkness now gives +50% duration to undead bloons spawned from any Necromancer, including himself
  • Buff Prince of Darkness range increased (40 --> 80)
  • Change balloon Now rotates when it attacks
  • Change balloon No longer rotates when it attacks
  • Buff Princes of Darkness now each have their own personal 'graveyard' of 2000 capacity rather than 1 shared pool of 2000
  • Buff Princes of Darkness will display their current graveyard size above their portrait next to their pop count. Any Bloons popped within their range can be absorbed into that graveyard, but 1 pop will not fill more than 1 graveyard.
  • Buff Princes of Darkness will now be able to retain any Bloons in their graveyard for 1 extra round before expiring
  • Buff Princes of Darkness Zombie lifespan increased from 12s -> 15s
  • Buff Princes of Darkness Zombie spawn rate is increased by a flat 10% for every 100 Bloons in the grave reaching a maximum of double attack speed at 500 capacity.
  • Nerf Prince of Darkness can no longer increase zombie count via pops on Sandbox Mode and then returning to a certain game



  • The Prince of Darkness is sitting on a throne that does not rotate with the tower's aiming.
  • Before update 2.0, this upgrade used to be Soulbind. The Soulbind upgrade unlocked an ability that allowed the player to bind towers to the Wizard and sacrifice them for extra lives if bloons got through.
    • The graphics for the Soulbind/Prince of Darkness upgrades remained the same through the update; both towers have/had the same graphics.
  • The Wizard moves its hands when attacking and summoning bloons.
  • Note that similar to its predecessor, the Wizard does not have to pop the bloons himself, they simply have to be popped within his presence to become undead.
  • The undead Bloons, MOABs, and BFBs aren't affected by the Big Bloon Option.
  • From Version 11.0 onwards, due to a massive range buff, Prince of Darkness has more range than Arcane Mastery and their subsequent upgrades.
  • The tower's name might be a reference to a movie of the same name which happens to also involve a necromancer.
  • There was a glitch with this tower and Necromancer: Unpopped Army where if you exit your current game, go to sandbox, pop some bloons and spawn zombies, then go back and start the round, your Necromander or PoD would spawn the zombies from your sandbox session allowing for easy zombie spawns.
    • This was patched as of Version 18.0. Now the "graveyard" stores all popped bloons from last round, and the amount of bloons sent there will be constant.
    • ISAB posted a couple of videos showcasing the "Prince of Darkness glitch", the latest being the video "Zombie Bloons Are A DISASTER On This Map (Bloons TD 6)", which he used to attempt to beat a certain challenge set on Dark Castle Medium CHIMPS with higher HP Ceramics and higher HP but slower MOAB-class.

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