Gundam Heavyarms.

What moves the price of this card

The Gundam Heavyarms on this page is the Normal printing from Edition Beta, and it trades at $1.60 in near mint condition. The same name is on 5 other printings: Gundam Promotional Cards GD02-025 at $82.98, Starter Deck 02: Wings of Advance ST02-003 at $8.43, Starter Deck 02: Wings of Advance ST02-003 at $0.21, Dual Impact GD02-025 at $0.16, Newtype Rising GD01-034 at $0.15, so read the set, the number and the rarity together before comparing prices.

Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.