Simulated holo effect, for illustration only.
Machine Reactor Structure Deck
Ancient Gear Castle
- Expansion
- Machine Reactor Structure Deck
- Code
- SR03-EN023
- Rarity
- Common
- Card type
- Spell · Continuous
- Archetype
- Ancient Gear
Card text
All "Ancient Gear" monsters gain 300 ATK. Each time a monster is Normal Summoned/Set, place 1 counter on this card. If you Tribute Summon an "Ancient Gear" monster face-up, you can Tribute this card instead, if the number of its counters is equal to or greater than the number of required Tribute(s).
Other printings
Price history
Ungraded cards
Condition: Near Mint (Mint and Near Mint)
- From
- —
- Price trend
- €0.35
- Average price 30 days
- €0.28
- Average price 7 days
- €0.31
- Average price 1 day
- €0.10
Oct 2, 2026 · €0.35
The dashed line is an estimate from the markets' rolling averages; recorded history starts on Oct 1, 2026.
Show data as a table
| Date | Price | Low |
|---|---|---|
| Oct 2, 2026 | €0.35 | — |
| Oct 1, 2026 | €0.35 | — |
| Sep 24, 2026 (estimate) | €0.31 | — |
| Sep 1, 2026 (estimate) | €0.28 | — |
Graded index
Certified cards, by grader and grade — kept apart from ungraded prices.
No graded prices
There aren't enough reliable offers for this graded card on external markets.