Gem-Knight Ruby (BLMM-EN136) from Battles of Legend: Monster Mayhem (YUGIOH) is available from 2 stores across 2 regions. Cheapest at $0.17 from tcgplayer (US) — 92% cheaper than EU. Prices last updated Jun 16, 2026.
yugioh
Gem-Knight Ruby
Battles of Legend: Monster Mayhem
- Collector #
- BLMM-EN136
- Rarity
- Ultra Rare
- Set
- BLMM
3 platforms1 condition
7d Change
No data
Lowest Price
$0.17
TCGPlayersave $1.94
Stores
2
Cardmarket, TCGPlayer
Price Range
$0.17 – $2.11
Prices
Not enough data for Buy Signal (needs 7+ days of price history).
Price History
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Profit Calculator
Buy Total (USD)
$1.06
Seller Fees
-$0.52
Net Profit
+$0.53
ROI
+50.4%
Break-even sell price: $1.52 on tcgplayer
