Question 1

How much is Iron Defender 631 worth?

Accepted Answer

Iron Defender 631 from MEGA Start Deck 100 Battle Collection (JP) sells for €0.20 in Europe and $1.27 in the US, as of 4 November 2026.

Question 2

Is Iron Defender 631 going up or down in price?

Accepted Answer

Steady. Over 30 days, since 6 October 2026, its Cardmarket price has stayed at about €0.20.

Question 3

Why is Iron Defender 631 priced differently in Europe and the US?

Accepted Answer

Cardmarket and TCGplayer are separate markets with their own sellers, buyers and supply. In the US it sells for $1.27 on TCGplayer, about €1.14, which is 468% higher than its €0.20 on Cardmarket. Prices are converted at the European Central Bank’s reference rate for the same day.

Question 4

Where does this price come from?

Accepted Answer

The European price is Cardmarket’s trend price, their daily estimate of what the card sells for now, from real sales. The US price is TCGplayer’s market price, from recent completed sales. Binderlist collects both every night and keeps each day’s price.

Question 5

What is the most valuable card in MEGA Start Deck 100 Battle Collection (JP)?

Accepted Answer

Pikachu ex 764 at €996.67 on Cardmarket, as of 4 November 2026.

Set	MEGA Start Deck 100 Battle Collection (JP)
Number	631
Japanese name	アイアンディフェンダー
Illustrator	Studio Bora Inc.
Released	19 December 2025

Iron Defender 631 price

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Questions and answers

How much is Iron Defender 631 worth?

Is Iron Defender 631 going up or down in price?

Why is Iron Defender 631 priced differently in Europe and the US?

Where does this price come from?

What is the most valuable card in MEGA Start Deck 100 Battle Collection (JP)?

Most valuable in MEGA Start Deck 100 Battle Collection (JP)

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