LEGO 40084 Accessory Pack is a HERO Factory set valued at $14 for new and sealed sets, up 181% from an original retail price of $4.99. The set retired in August 2013 with annual appreciation averaging 4.86% since. On the used market, values range from $3 to $4 based on condition. Secondary market prices for new and sealed sets typically fall between $10 and $20.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Accessory Pack since June 2016. Very high accuracy
LEGO 40084 Accessory Pack is a Hero Factory Accessories set released in 2013, containing 6 pieces. It was a gift-with-purchase item available with any Hero Factory purchase from July 15 to August 31, 2013. The pack includes an exclusive black and red Hero Factory “evil brain” element and a flame sword accessory. The brain piece is removable and designed to attach to buildable figures from the Hero Factory line.

A new and sealed Accessory Pack is currently valued at around $14, with annual growth of approximately 3%, which is lower than other Accessories sets. The average used price is $3 for those in good overall condition. New and sealed listings currently range from $14 to $20. Based on current trends, this set could be valued near $15 within the next year.

For Sale (New/Sealed)

(US) *** Best US listing for Accessory Pack ***
BrickEconomy Choice
$19.99
(US) As of 5/29, I am listing my complete Hero Factory and Bionicle collections slowly, so... $10.00
-28.8%
(BE) BrickLink store brick_shop_for_you $10.45
-25.6%
(NL) MISB $14.44
+2.8%
(US) Amazon listing for Accessory Pack $14.74
+5.0%
(NL) BrickLink store Ronbrick $17.41
+24.0%
(US) Hero Factory Brain Attack 40084 - Lego 40084 $19.99
+42.4%
(US) New 40084 LEGO HERO Factory Accessory Pack Retired 2013 - Poly bag $20.00
+42.5%
(US) HERO Factory: Accessory Pack (40084) New Sealed $20.00
+42.5%
(DE) BrickLink store 7 Summits $20.66
+47.2%
(US) Hero Factory 40084 Brain Attack Polybag 2013 New Sealed 6Pcs LEGO 6045477 $26.94
+91.9%

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 40084 Accessory Pack.

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 40084 Accessory Pack.

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Year 2014
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Theme / Subtheme HERO Factory / Value Packs
Year 2013
Pieces 158
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66483 LEGO HERO Factory Value Pack 3-in-1
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66484 Value Pack 3-in-1

Theme / Subtheme HERO Factory / Value Packs
Year 2013
Pieces 158
Availability Retired
66484 LEGO HERO Factory Value Pack 3-in-1
Retail $39.99
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Theme / Subtheme HERO Factory / Value Packs
Year 2013
Pieces 155
Availability Retired
66485 LEGO HERO Factory Value Pack 3-in-1
Retail $39.99
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Growth  +291.1%
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66471 Super Pack 2-in-1

Theme / Subtheme HERO Factory / Value Packs
Year 2013
Pieces 153
Availability Retired
66471 LEGO HERO Factory Super Pack 2-in-1
Retail $59.99
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
Pieces 149
Availability Retired
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Retail $19.99
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Theme / Subtheme HERO Factory / Value Packs
Year 2013
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Year 2014
Pieces / Figures 113 / 2
Availability Retired
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Retail $14.99
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Year 2014
Pieces / Figures 108 / 2
Availability Retired
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
Pieces 103
Availability Retired
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Retail $19.99
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44027 BREEZ Flea Machine

Year 2014
Pieces / Figures 102 / 2
Availability Retired
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Retail $14.99
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Theme / Subtheme HERO Factory / Value Packs
Year 2013
Pieces 92
Availability Retired
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Retail $9.99
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Year 2014
Pieces / Figures 91 / 1
Availability Retired
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Retail $14.99
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Growth  +354.8%
Annual growth 10.0%

44019 ROCKA Stealth Machine

Year 2014
Pieces / Figures 89 / 2
Availability Retired
44019 LEGO HERO Factory ROCKA Stealth Machine
Retail $14.99
Value $67.86
Growth  +352.7%
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44017 STORMER Freeze Machine

Year 2014
Pieces / Figures 88 / 3
Availability Retired
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Retail $14.99
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Year 2014
Pieces / Figures 83 / 1
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Year 2014
Pieces / Figures 79 / 2
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
Pieces 69
Availability Retired
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Retail $12.99
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
Pieces 66
Availability Retired
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
Pieces 62
Availability Retired
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Theme / Subtheme HERO Factory / Brain Attack
Year 2013
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Availability Retired
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Collect and battle with the exclusive black evil brain!

Add the exclusive black evil brain and flame sword to your Hero Factory battles! Attach the black evil brain and flame sword to any Hero Factory villain to transform him for battle! Collect this exclusive accessory pack for even better buildable battles.

Features removable black evil brain that attaches to buildable figures and flame sword
Description provided by LEGO©