K-9, Mark I
K-9, Mark I Price Summary
As of Jul 23, 2026, the cheapest tracked printing of K-9, Mark I is $3.02 (WHO #47), and the most expensive is $46.98 (WHO #1128, Showcase, Surge Foil). The benchmark price (cheapest playable nonfoil) is $3.02, down 7.1% over 7 days, down 18.4% over 30 days, down 18.4% over 90 days. All-time tracked high: $4.57 (2025).
K-9, Mark I Printings & Prices
K-9, Mark I has 6 tracked printings across 1 sets, in surge foil, nonfoil and foil finishes, including showcase, extended art and alt art treatments.
Sell K-9, Mark I: Buylist Offers
Card Kingdom currently pays $27.50 cash for WHO #1128 (Surge Foil).
| Buyer | Printing | Finish | Cash offer | Retail | Spread |
|---|---|---|---|---|---|
| Card Kingdom | WHO #1128 | Surge Foil | $27.50 | — | — |
| Card Kingdom | WHO #953 | Surge Foil | $4.50 | $8.99 | 50% |
| Card Kingdom | WHO #362 | Foil | $3.50 | $6.99 | 50% |
| Card Kingdom | WHO #652 | Surge Foil | $3.50 | $6.99 | 50% |
| Card Kingdom | WHO #537 | Nonfoil | $3.50 | $5.99 | 42% |
| Card Kingdom | WHO #362 | Nonfoil | $2.75 | $4.99 | 45% |
| Card Kingdom | WHO #47 | Nonfoil | $2.05 | $4.49 | 54% |
| Card Kingdom | WHO #47 | Foil | $2.03 | — | — |
K-9, Mark I Rules Text & Legality
Negative — As long as K-9 is untapped, other legendary creatures you control have ward {1}.
Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn.
Doctor's companion (You can have two commanders if the other is the Doctor.)
K-9, Mark I is legal in Legacy and Commander, and not legal in Standard, Pioneer, Modern and Pauper.
K-9, Mark I Rulings
- Oct 13, 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.
- Oct 13, 2023 An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.
- Oct 13, 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.
- Oct 13, 2023 If something refers to your commander while you have two commanders, it refers to one of them of your choice. If you are instructed to perform an action on your commander (e.g. put it from the command zone into your hand due to Command Beacon), you choose one of your commanders at the time the effect happens.
- Oct 13, 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.
Reprints & Reprint Risk
K-9, Mark I has been reprinted 9 times.
| Set | Date | Rarity | Treatment |
|---|---|---|---|
| WHO #652 | 2023-10-13 | Rare | Alt Art |
| WHO #1128 | 2023-10-13 | Rare | Showcase |
| WHO #953 | 2023-10-13 | Rare | Extended Art |
| WHO #537 | 2023-10-13 | Rare | Showcase |
| WHO #537 | 2023-10-13 | Rare | Showcase |
| WHO #47 | 2023-10-13 | Rare | Standard |
| WHO #47 | 2023-10-13 | Rare | Standard |
| WHO #362 | 2023-10-13 | Rare | Extended Art |
| WHO #362 | 2023-10-13 | Rare | Extended Art |
WHO #652 K-9, Mark I in Commander
K-9, Mark I is the #3,371 most-played card on EDHREC, down 46 places over the last 30 days.
K-9, Mark I FAQ
How much is K-9, Mark I worth?
K-9, Mark I is worth about $3.02 for its cheapest playable printing as of Jul 23, 2026. Prices range from $3.02 to $46.98 across 6 tracked printings.
Is K-9, Mark I legal in Commander?
Yes — K-9, Mark I is legal in Commander. It is also legal in Legacy.
Has K-9, Mark I been reprinted?
Yes — K-9, Mark I has been reprinted 9 times, with 6 printings tracked on The Index.
Why is K-9, Mark I cheap?
K-9, Mark I trades at about $3.02 — 9 reprints keep supply plentiful.