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    MegaBonk Item Mechanics Explained (Holy Book, Lamp, Doll & More)

    A simple, no-nonsense breakdown of MegaBonk’s most confusing items. What stacks, what scales, what caps, and what’s actually worth taking — explained clearly so you don’t waste picks on dead items again.

    MegaBonk Item Mechanics Guide 2025
    How MegaBonk’s trickiest scaling items actually work under the hood.

    Grandma’s Secret TonicGrandma’s Secret Tonic

    • First tonic gives +2% crit chance (only the first one).
    • 50% chance to explode for 50% crit damage in a 4m radius.
    • Each additional tonic increases radius by +1m.
    • Hard cap at 5 tonics (8m radius). 6+ do nothing.
    • Currently considered overrated — many runs waste slots with extra copies.

    Cursed GrabbiesCursed Grabbies

    • +10% difficulty per stack.
    • Reduces max HP by multiplying it with 0.8 per stack.
    • Listed 5% proc chance actually uses hyperbolic scaling — real chance at 1 stack ≈ 2.94%.
    • Hard theoretical cap at 50% proc chance, but impossible to reach in practice.
    • Damage scales linearly with level + total stacks.
    • Mostly avoided due to anti-synergy with Holy Book.

    Holy BookHoly Book (One of the Strongest Items)

    • Grants +100 max HP, +50 regen and 25% overheal per book.
    • Stores total healing over 1.5s, then explodes for that amount as AoE damage.
    • Radius increases by +1m per book (starting at 5m).
    • Functions like a 5th weapon: can crit, can proc Ice Cube, Bonkhammer, etc.
    • Insanely strong at high regen or “regen spam” builds.

    Overpowered LampOverpowered Lamp

    • Adds +1 extra roll for all on-hit effects.
    • Example: Ice Cube (20%) = normally 1 dice roll → Lamp = 2 dice rolls.
    • Multiple lamps = multiple dice → huge proc spam.
    • Shots can proc the same effect multiple times.
    • Easily one of the strongest scaling items in the entire game.

    Bloody CleaverBloody Cleaver

    • Life steal activates Blood Mark.
    • 50% chance to apply Blood Mark per hit — additive stacking.
    • 2 cleavers = 100% → always apply a stack.
    • 4 cleavers = 200% → apply 2 stacks per hit.
    • Blood Mark detonates after 4–5 seconds or instantly on lethal.
    • Damage scales heavily with level + total stacks.

    Cursed DollCursed Doll

    • Curses enemies for 30% max HP per second.
    • Normal enemies die in 4s — bosses take reduced damage.
    • Boss damage scales mostly with your level.
    • A single doll can curse 2–6 enemies (likely bugged).
    • Each extra doll adds +2 curse slots.
    • Great mob clearer, weaker on bosses.

    KeyKeys & Hyperbolic Scaling

    • Keys also use hyperbolic scaling.
    • Listed 10% chance = actually ~9.1% on the first key.
    • Diminishing returns kick in extremely fast.
    • Same system as Cursed Grabbies.
    • If an item feels like stacking “falls off,” it’s probably hyperbolic.

    TL;DR Summary

    • Grandma’s Tonic: Strong early, hard-capped at 5 — extra copies = dead.
    • Cursed Grabbies: Good damage but destroys HP scaling → anti-Holy Book.
    • Holy Book: Top-tier. Functions like a 5th weapon with crazy scaling.
    • Overpowered Lamp: Completely busted multi-proc engine.
    • Bloody Cleaver: Amazing stacking damage, especially with multi-hit weapons.
    • Cursed Doll: Deletes mobs fast; meh on bosses.
    • Keys: Hyperbolic scaling → don't overstack.
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