Convex Knight

EARTH · Machine / Effect Monster · Level 4 · ATK 1800 / DEF 500

If a Machine monster is on the field and this card is in your hand: You can Special Summon this card in Defense Position, then you can make this card's Level become the Level/Rank of 1 Machine monster on the field. During your Main Phase: You can send 1 EARTH Machine monster from your Deck to the GY, then until the end of this turn, this card gains ATK equal to the Level of the monster sent to the GY x 100. You can only use each effect of "Convex Knight" once per turn.

Is it legal?

TCGUnlimited (3)

OCGUnlimited (3)

Master DuelUnlimited (3)

Rarity: Ultra Rare (UR)

Genesys0 points

Price

About $0.15–$0.24 across printings and stores (as of Oct 8, 2026). See listings on TCGplayer · eBay · Cardmarket (EU)

Price history & alerts

Played in tournaments

In 6 recent tournament lists, mostly Trains (5), R.B. (1).

Most often played with

Across the tournament lists that run Convex Knight: the share of those lists that also run each card.

Night Train Blue Traveler
100% of lists

Revolving Switchyard
100% of lists

Urgent Schedule
100% of lists

Scrap Recycler
100% of lists

Exceptional Schedule
100% of lists

Clockwork Knight
100% of lists

Infinitrack River Stormer
83% of lists

Double Headed Anger Knuckle
83% of lists

Qliphort Genius
83% of lists

Superdreadnought Rail Cannon Juggernaut Liebe
83% of lists

Superdreadnought Rail Cannon Gustav Max
83% of lists

Superdreadnought Rail Cannon Flying Launcher
83% of lists

Printings

Set	Code	Rarity
Blazing Dominion	BLZD-EN026	Common

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