Big Mama's Cape icon, Legendary rarity item in Grand Piece Online

Big Mama's Cape BMC

Tier B+ Legendary Low demand Medium confidence
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Current trading value

3.8K

Range 3.2K–4.4K

Window48h

UpdatedSep 15, 2026

Trades961
Offered527
Wanted434
Demand ×0.82

trade value per $1

Buy on PetMart

PetMart is our shop

Big Mama's Cape isn’t in stock. Biscuit trades near it4.4K, $3.19. PetMart is our shop

What Big Mama's Cape's value means

At 3.8K value units, Big Mama's Cape is worth about 0.38× the 10,000-unit reference the value chart is pegged to (a Mythical Fruit Chest's starting value in the solve).

That figure is a medium-confidence read: the solver places the true value between 3.2K and 4.4K (a ±15% band) off 961 observed Discord trades.

Over the last week the value has been holding roughly flat versus its 30-day average (+0.3%).

In trade chats and value lists, Big Mama's Cape is also written BMC.

Demand is currently rated Low and rarity is Legendary, both recomputed every solver run.

How to get Big Mama's Cape

Dropped by
Big Mama
Location
Whole Cake Island
Drop rate
4%

Big Mama's Cape is a Legendary back accessory that drops from Big Mama with 4% chance.

Price history · 60 days

Per-day median across observed trades. Last point is today's solver run.

-22.4% / 11d

Recent Big Mama's Cape trades

The exact offers our pipeline parsed from Discord. No edits, no opinions.

  • seen 26× Legendary Fruit Chest  Big Mama's Cape
  • seen 18× Big Mama's Cape  Legendary Fruit Chest
  • seen 9× True Ba'al's Guard  Big Mama's Cape

Most common trade shapes observed for Big Mama's Cape, from 112 solo-trade samples.

Trade recommendations

Auto-built from the value-matches graph. Verdicts use the same win/fair/lose math as the calculator.

WIN

Big Mama's Cape for Mochi Trident (3.6K)

Big Mama's Cape's value tops Mochi Trident. Clean win on paper.

+4.5% in your favor

Browse all GPO values →

FAQ

How much is Big Mama's Cape worth in GPO?

Big Mama's Cape's current trading value is approximately 3.8K (range 3.2K-4.4K), based on 961 observed Discord trades over the last solver run. Updated 2026-09-15.

How do you get Big Mama's Cape in GPO?

Big Mama's Cape drops from Big Mama. Drop rate: 4%. Location: Whole Cake Island.

Is Big Mama's Cape's value rising or falling?

Right now it's roughly flat: the 7-day value is +0.3% against its 30-day average, so no strong move either way.

How is Big Mama's Cape's value calculated?

Big Mama's Cape's value is derived purely from observed Discord trade messages using a ratio-chain solver against the Mythical Fruit Chest anchor (10,000 value units). No editor opinions, no hand-tuned numbers. See /legal/methodology for the full math.

Why is the value a range, not one number?

The range is a 90% confidence band. The single headline number is the median. The band shows where the solver thinks the true value lives given noise.