Diamond Knight
M20Core Set 2020/#224/2019Uncommon
MV 3
Current paper retail
Card Kingdom$0.35
Cardmarket€0.11
ManaPool$0.15
TCGplayer$0.32
Buylist (dealers pay)
Card Kingdom$0.01
MTGO (Cardhoarder)
retail$0.03 tix
Paper retail history (USD)
3 providers
Latest $0.35High $0.35Low $0.35▲ 0.0%
Market and collecting
Market overview
$0.32TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-08
7d▲ 0.0%30d▲ 0.0%90d▲ 33.3%
90d high
$0.33
90d low
$0.23
Paper printings priced
1
Currently 1st
Cheapest paper printing
$0.32
Core Set 2020
- Up 0.0% over the last 30 days on TCGplayer.
- Currently 3% below its 90 day high of $0.33.
- Foil copies of this printing carry a 44% premium over nonfoil.
Find this printing on eBayView on TCGplayerAffiliate. MTGPrices may earn from qualifying eBay and TCGplayer purchases.
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Compare printings (1 priced)
Gameplay and rules
Artifact Creature — Knight
Vigilance (Attacking doesn't cause this creature to tap.)
As this creature enters, choose a color.
Whenever you cast a spell of the chosen color, put a +1/+1 counter on this creature.
1 / 1
Keywords
Vigilance
Card capabilities
ArtifactCreature
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Rulings (3)
wotc12 Jul 2019
You must choose one of the five colors of Magic as Diamond Knight asks you to choose a color. You can’t choose “artifact,” “colorless,” or “chartreuse.”
wotc12 Jul 2019
If you somehow control a Diamond Knight for which no color was chosen, its last ability will never trigger.
wotc12 Jul 2019
Diamond Knight’s ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
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About this card
Diamond Knight
Diamond Knight is an Artifact Creature — Knight, with mana cost {3} (mana value 3).
Format legality: Commander: legal, Modern: legal, Standard: not_legal, Pioneer: legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $0.32 (up 0.0% over 30 days).
Frequently asked
Diamond Knight FAQ
How much is Diamond Knight worth?
The current TCGplayer USD retail price for Diamond Knight is $0.32. It is up 0.0% over the last 30 days. Over 90 days it has ranged from $0.23 to $0.33.
What is the cheapest printing of Diamond Knight?
The cheapest currently priced paper printing is from Core Set 2020 at $0.32 on TCGplayer.
What set was Diamond Knight first printed in?
The earliest English paper printing that MTGPrices tracks is from M20 #224, released 2019-07-12.
Is there a foil version of Diamond Knight?
Yes. On this printing, foil copies trade at $0.46 versus $0.32 for nonfoil, which is 44% more expensive on TCGplayer.
Is Diamond Knight legal in Commander?
Yes, Diamond Knight is currently legal in Commander per Scryfall's legality feed.
Is Diamond Knight legal in Modern?
Yes, Diamond Knight is currently legal in Modern per Scryfall's legality feed.
Is Diamond Knight legal in Standard?
Diamond Knight is not currently legal in Standard per Scryfall's legality feed.
What does Diamond Knight do?
Diamond Knight is an Artifact Creature — Knight with mana cost {3}. Its Oracle text reads: "Vigilance (Attacking doesn't cause this creature to tap.) As this creature enters, choose a color. Whenever you cast a spell of the chosen color, put a +1/+1 counter on this creature.".