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The Bazaar Build

Kripp's Goop Flail Mak Build

Kripparrian
Mak
Updated on May 8, 2026
May 8, 2026

Overview

Goop Flail is a powerful Weapon combo build with high one-shot potential. With the right Damage scaling and support, it can singlehandedly delete most opposing boards.

If found early it's relatively easy to assemble, making it a great tempo build when available. However, since most Mak builds don't lean into Weapons, it's not typically an easy pivot option.

Kripparrian's Video Guide

Example 10 Win Board

goop flail mak vat variant

Example Early Game Path

Core Synergies

  • Goop Flail is a one-item carry that converts Damage scaling into Poison (1:1).
    • Once you've increased its base Damage enough, it should only take one activation to win the combat (barring a few ticks of Poison).
    • This means the primary goal is to find forms of Damage scaling, along with a source of Haste/Charge to accelerate its cast time.
  • Epicurean Chocolate is one of the most reliable ways to permanently increase the Damage of Goop Flail.
    • Try to prolong your PvE Encounters to get the most activations, ideally without destroying it. This may involve intentionally weakening your board.
    • Upgrade Epicurean Chocolate to Silver-tier at level 4. This will replenish its Ammo, allowing for even more scaling.
  • Smelling Salts combos exceptionally well with Lag-bolt, creating an on-start Haste setup.
    • This is strong enough to remain late game viable, but will require upgrades on Smelling Salts to improve its Haste duration.
    • Cloud Wisp is a reasonable source of targeted Haste during the early game, but you'll eventually want better options later on.

Tips & Tricks

  • Curio can be extremely valuable as it's the one semi-reliable place to find Lag-bolt.
    • Additionally, you can also purchase any of the Large Bronze items and Transform them with Catalysts. It's a great strategy to find Goop Flail early.
    • Definitely pick up at least one Catalyst spawner (Aludel, Cellar, Mortar & Pestle).
  • Peacewrought helps provide a great Economy boost by converting cheap/unwanted items into Gold.
    • However, note that Epicurean Chocolate is still the priority for the guaranteed Bronze to Silver upgrade.
    • Ideally you're able to find B1&B2, or happen to simply purchase it at Silver-tier.
  • Book of Secrets is great way to acquire more skills, and if you're lucky, you'll find sources of Damage/speed.
    • This build requires far less Stash space than other Mak builds, so it's pretty easy to hold onto extra utility items.

Common Filler Items

  • Emerald
  • Fungal Spores
  • Incense
  • Ionized Lightning
  • Philosopher's Stone
Goop FlailMak
Epicurean ChocolateCommon
Smelling SaltsMak
Cloud WispMak
CatalystMak
AludelMak
CellarMak
Mortar & PestleMak
PeacewroughtMak
Book of SecretsMak

Example Mid Game Additions

Core Synergies

  • Viper Cane is a solid source of in-combat Damage scaling during the mid game.
    • You'll want to have some faster Poison/Regen items to trigger the scaling before Goop Flail goes off.
    • Infused Bracers can be a fair alternative if you've picked up some Self-Poison items.
    • Toxicity is excellent for the same reasons, and even better since it comes in skill form.
  • Hourglass helps to provide Cooldown Reduction, but is generally better played at Gold or Diamond tier (Silver quickly falls off).
  • Runic Potion can grant Lifesteal to Goop Flail, offering the build a bit of sustain.
    • However, it's far less of a priority compared to other Weapon setups since you generally won't strike more than once.

Tips & Tricks

  • Keep an eye out for off-Hero synergies or pickups that can help improve the build's speed or Damage scaling.
  • Given that few specific items are required, both the Crash Site and Temple Expeditions are well worth visiting (the "lost vendor" opportunity cost is very minimal).
Viper CaneMak
Goop FlailMak
Infused BracersMak
ToxicityVanessa, Mak, Dooley, Karnok
HourglassMak
Runic PotionMak

End Game Build Breakdown

Core Synergies

  • Poppy Field is the best Damage amplifier for Goop Flail.
    • This is what truly unlocks the one-shot combo setups, as each individual hit of the Multicast will increase the subsequent hits' Damage.
  • Foul Mushroom can greatly hinder opposing builds, particularly fast spamming Charge setups.
    • While not a priority inclusion, it's a solid utility item if you've got extra board space. It'll definitely hurt the enemy more than you.

Situational Variants

  • Vat of Acid isn't a common choice alongside Goop Flail, but what it does showcase is the build's ability to adapt.
    • Since few items are required, you can often make use of more niche run-specific synergies.
    • In Kripp's case, this was a Heavy Vat of Acid combined with Temporal Strike for more Charge potential.
    • Boiling Flask was just the icing on the cake, turning Vat of Acid into a threat of its own (alongside the Potion-tagged Goop Flail).

Tips & Tricks

  • If you can solve Damage scaling and speed, you've got an effective recipe for late game success.
    • However, it's also possible to snowball a run without an optimized board if you can get ahead early.
  • Unlike many other builds sustain is less of a priority, so don't feel the need to select a Restorative/Shielded enchantment for the Goop Flail.
Poppy FieldMak
Goop FlailMak
Foul MushroomMak
Vat of AcidMak
Temporal StrikeVanessa, Mak, Jules, Dooley, Karnok
Boiling FlaskMak