OtterDex
Thopter Assembly
Set
Mirrodin Besieged
Address
MBS 140
Rarity
rare
Finishes
Non-foil, Foil
Game
Magic: The Gathering

Thopter Assembly

Mirrodin Besiegedrare

Non-foil
$0.30
Foil
$2.58

Scryfall, checked 2026-09-07. An informational market estimate, not an appraisal of your copy.

No price history for this printing yet — a chart needs more than one reading, and this one has been priced not at all so far. It is recorded daily from here.

Is this the one you are holding?

The bottom edge of your card should read MBS 140. There are 4 other printings of Thopter Assembly, worth $0.35 to $0.73. See all of them.

5 printings of Thopter Assembly

Same name, different printings. The set code and collector number printed along the bottom edge are what tell them apart.

Not sure which one you are holding? OtterDex reads the set code and collector number off the card and tells you.