K-9, Mark I
WHODoctor Who/#47/2023Rare
Colour IDMV 1
Current paper retail
Card Kingdom$3.49
Cardmarket€1.82
ManaPool$2.96
TCGplayer$3.60
Buylist (dealers pay)
Card Kingdom$0.90
Paper retail history (USD)
3 providers
Latest $3.49High $4.99Low $3.49▼ 22.3%
Market and collecting
Market overview
$3.60TCGplayer, USD, retail, nonfoil
Latest observation: 2026-11-10
7d▲ 3.1%30d▲ 15.0%90d▼ 6.3%
90d high
$3.84
90d low
$3.12
Paper printings priced
6
Currently 1st
Cheapest paper printing
$3.60
Doctor Who
- Up 15.0% over the last 30 days on TCGplayer.
- Currently 6% below its 90 day high of $3.84.
- This is the cheapest paper printing of the card currently priced (6 priced in total).
- Foil copies of this printing carry a 34% 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 (6 priced)
Gameplay and rules
Legendary Artifact Creature — Robot Dog
Negative — As long as K-9 is untapped, other legendary creatures you control have ward .
Affirmative — , : Target legendary creature can't be blocked this turn.
Doctor's companion (You can have two commanders if the other is the Doctor.)
1 / 1
Keywords
NegativeAffirmativeDoctor's companion
Card capabilities
ArtifactCreatureLegendary creature
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Primary formats
Eternal formats
Digital formats
Rulings (7)
wotc13 Oct 2023
Although Doctor's companion is a new variant of the partner ability, the rules for partner have not otherwise changed. Notably, Time Lord Doctors and cards with Doctor's companion do not interact with cards which have another partner ability.
wotc13 Oct 2023
The Doctor's companion ability allows you to have two commanders if one has the ability and the other is a legendary creature that is a Time Lord Doctor and has no other creature types. Creatures with the changeling ability, for example, can't be a second commander this way.
wotc13 Oct 2023
Once the game begins, your two commanders are tracked separately. If you cast one, you won't have to pay an additional {2} the first time you cast the other. A player loses the game after having been dealt 21 combat damage from any one of them, not from both of them combined.
wotc13 Oct 2023
If your Commander deck has two commanders, you can include only cards whose own color identities are also found in your commanders' combined color identities.
wotc13 Oct 2023
Both commanders start in the command zone, and the remaining 98 cards (or 58 cards in a Commander Draft game) of your deck are shuffled to become your library.
wotc13 Oct 2023
An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.
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Ranked by shared capabilities, colour identity, mana value and type. Never by strategic judgement.
Shares Artifact, Creature, Legendary creatureOverlapping colour identity
Shares Creature, Legendary creatureSame colour identity
Shares Creature, Legendary creatureSame colour identity
Shares Creature, Legendary creatureSame colour identity
Shares Creature, Legendary creatureSame colour identity
Shares Creature, Legendary creatureSame colour identity
Shares Creature, Legendary creatureOverlapping colour identity
About this card
K-9, Mark I
K-9, Mark I is a Legendary Artifact Creature — Robot Dog, with mana cost {U} (mana value 1). Printed 6 times across MTG sets.
Format legality: Commander: legal, Modern: not_legal, Standard: not_legal, Pioneer: not_legal, Legacy: legal, Pauper: not_legal.
Current headline price on TCGplayer: $3.60 (up 15.0% over 30 days).
Frequently asked
K-9, Mark I FAQ
How much is K-9, Mark I worth?
The current TCGplayer USD retail price for K-9, Mark I is $3.60. It is up 15.0% over the last 30 days. Over 90 days it has ranged from $3.12 to $3.84.
What is the cheapest printing of K-9, Mark I?
The cheapest currently priced paper printing is from Doctor Who at $3.60 on TCGplayer.
What is the most expensive printing of K-9, Mark I?
The most expensive currently priced paper printing is from Doctor Who at $48.86 on TCGplayer.
How many printings of K-9, Mark I are there?
K-9, Mark I has been printed 6 times in English paper sets that MTGPrices tracks.
What set was K-9, Mark I first printed in?
The earliest English paper printing that MTGPrices tracks is from WHO #47, released 2023-10-13.
Is there a foil version of K-9, Mark I?
Yes. On this printing, foil copies trade at $4.82 versus $3.60 for nonfoil, which is 34% more expensive on TCGplayer.
Is K-9, Mark I legal in Commander?
Yes, K-9, Mark I is currently legal in Commander per Scryfall's legality feed.
Is K-9, Mark I legal in Modern?
K-9, Mark I is not currently legal in Modern per Scryfall's legality feed.