Cynet Backdoor

Mystic Fighters (2019), Yu-Gi-Oh!, MYFI-EN057, Super Rare

Printing: 1st Edition · Near Mint

$0.21

TCGplayer market price (an average of recent sales)

As of Oct 18 (2 days ago). Unchanged since Oct 8.

Listed median$0.38asks on TCGplayer as of Oct 18 (1.8× the market price)

Change

7d0.0%30d+40.0% +$0.0690d+23.5% +$0.041y−46.2% −$0.18

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Related cards

Appropriate$0.30Same set

Dragonmaid Changeover$0.67Same set

Dragonmaid Downtime$0.41Same set

Dragonmaid Nudyarl$2.23Same set

Price trend

Oct 11 $0.21 → Oct 18, 2026 $0.21 0.0%

$0.21

Oct 11, 2026Oct 13, 2026Oct 14, 2026Oct 15, 2026Oct 18, 2026

Sep 18 $0.15 → Oct 18, 2026 $0.21 +40.0%

$0.15$0.16$0.18$0.20$0.21

Sep 18, 2026Sep 28, 2026Oct 3, 2026Oct 8, 2026Oct 18, 2026

Jul 20 $0.17 → Oct 18, 2026 $0.21 +23.5%

$0.14$0.16$0.18$0.20$0.21

Jul 20, 2026Aug 19, 2026Sep 3, 2026Sep 18, 2026Oct 18, 2026

Oct 18, 2025 $0.39 → Oct 18, 2026 $0.21 −46.2%

$0.39$0.14$0.20$0.30$0.21

Oct 18, 2025Feb 16, 2026Apr 18, 2026Jun 18, 2026Oct 18, 2026

Feb 8, 2024 $0.22 → Oct 18, 2026 $0.21 −4.5%

$0.65$0.14$0.20$0.40$0.21

Feb 8, 2024Dec 31, 2024Jun 13, 2025Nov 24, 2025Oct 18, 2026

Record

Price history Feb 8, 2024 to Oct 18, 2026

Highest$0.65Aug 27, 2024

Lowest$0.14Aug 27, 2026

Vs highest68% below $0.65

Price changes, last 30 days

Date	Price	Change
Sep 23	$0.15 → $0.16	+6.7%	Show on chart
Sep 25	$0.16 → $0.20	+25.0%	Show on chart
Oct 8	$0.20 → $0.21	+5.0%	Show on chart

Vs its set

Over the 90 days to Oct 18, 2026: this card +23.5%; the median other card in Mystic Fighters +3.9% (59 other cards, each at its tracked printing).

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Live market

Newest TCGplayer value: Oct 18, 2026. Prices in USD. Card names and images © their respective publishers. See how these prices are made.