How much is Iron Boulder (Master Ball Pattern) 77/187 worth?

Iron Boulder (Master Ball Pattern) 77/187 from Terastal Fest ex has a current market price of $3.18 for the Holofoil variant. Recent sales range from $2.82 to $11.00.

Is Iron Boulder (Master Ball Pattern) a good investment?

Iron Boulder (Master Ball Pattern) has declined 2.1% since release, showing a downward trend that suggests caution for new buyers.

Where can I buy Iron Boulder (Master Ball Pattern)?

Iron Boulder (Master Ball Pattern) is available on TCGplayer through verified sellers. Use the Buy button on this page to view current listings, market prices, and condition options.

What set is Iron Boulder (Master Ball Pattern) from?

Iron Boulder (Master Ball Pattern) is from the Terastal Fest ex set, part of the Scarlet & Violet series, which contains 237 cards. It is card number 77/187 with a rarity of Common.

Common

Iron Boulder (Master Ball Pattern) – 77/187

Terastal Fest ex#77/187BasicHP 140

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Featured Pokémon

#1022 Iron-boulder

rock / psychic

Set

Market Price

$3.18

Holofoil

Price updated Jul 23, 2026

-2.1%all time

Iron Boulder (Master Ball Pattern) has dropped 2.1% since release. Holofoil prices range from $2.82 to $11.00.

Variant	Market	Low	Mid	High	Trend
HolofoilDEFAULT	$3.18	$2.82	$3.87	$11.00	▼ 2.1%

Price History

Holofoil — market price over time

Card Details

Stage: Basic
HP: 140
Weakness: [Darkness] x2
Resistance: [Fighting] -30
Set: Terastal Fest ex
Rarity: Common
Card #: 77/187

Attacks

[Psychic][Colorless] Adjusted Horn (170)
If you don't have the same number of cards in your hand as your opponent, this attack does nothing.

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Frequently Asked Questions

How much is Iron Boulder (Master Ball Pattern) 77/187 worth?: Iron Boulder (Master Ball Pattern) 77/187 from Terastal Fest ex has a current market price of $3.18 for the Holofoil variant. Recent sales range from $2.82 to $11.00.
Is Iron Boulder (Master Ball Pattern) a good investment?: Iron Boulder (Master Ball Pattern) has declined 2.1% since release, showing a downward trend that suggests caution for new buyers.
Where can I buy Iron Boulder (Master Ball Pattern)?: Iron Boulder (Master Ball Pattern) is available on TCGplayer through verified sellers. Use the Buy button on this page to view current listings, market prices, and condition options.
What set is Iron Boulder (Master Ball Pattern) from?: Iron Boulder (Master Ball Pattern) is from the Terastal Fest ex set, part of the Scarlet & Violet series, which contains 237 cards. It is card number 77/187 with a rarity of Common.