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Commander Nexus
  1. Commander Nexus
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  3. K-9, Mark I

Command zone

K-9, Mark I

K-9, Mark I

Legendary Artifact Creature — Robot Dog

K-9 wants a deck that is full of legendary creatures and other legendary cards. It can share the lead with a Doctor as a second commander.

  • Mana costblue
  • Blue ()
  • Power / toughness1 / 1
  • RarityRare

Negative — As long as K-9 is untapped, other legendary creatures you control have ward 1 generic.

Affirmative — 1 genericblue, tap: Target legendary creature can't be blocked this turn.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Build a deck with K-9 Find it in the app

Archetypes

Cards That Fit K-9, Mark I

Picked for what they do in K-9's deck. When two cards do the same job, the one with the lower comes first. All of them fit K-9's color identity.Mana ValueThe total amount of mana a card costs, all added up. A card costing two generic and one green has a mana value of three. Wizards renamed this from "converted mana cost" in 2021, so older cards and articles may still use the old name.Sol RingOpen the full glossary

plan6

The 6 Cards

plan6

The 6 Cards

Rulings for K-9, Mark I

explain how K-9 works in tricky situations. They come from Wizards of the Coast, the company that makes Magic.RulingThe official answer to how a card works in a tricky situation. Most rulings are written by Wizards of the Coast, the company that makes Magic, and a few are notes from Scryfall, the card database Magic players use. A ruling explains a card. It does not change what the card says.Open the full glossary

Wizards of the Coast 13 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.

Wizards of the Coast 13 Oct 2023

An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.

Wizards of the Coast 13 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.

Wizards of the Coast 13 Oct 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.

Wizards of the Coast 13 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.

Wizards of the Coast 13 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.

Wizards of the Coast 13 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.

7 rulings, all written by Wizards of the Coast. Read the originals on Gatherer ↗

Similar Commanders

Commanders that share the most with K-9, and what they share.

Color identityEvery color of mana symbol on a card, in its cost and in its rules text. Your commander's color identity sets the limit for your whole deck: every other card has to fit inside it. A deck led by a green and white commander cannot play a card with any blue in its color identity.Open the full glossaryUPlayers write colors as letters: U for blue. Blue is U because B was already taken by black.Legends MatterLegends decks fill up on legendary cards and use cards that reward you each time you cast one. A legendary card has the word Legendary on its type line; you can only keep one with the same name in play, and nearly every commander is legendary.Open the Legends Matter pageHistoric PayoffRewards you for historic cards: the legendary cards, artifacts, and Sagas that Magic groups under that one word. In Commander your commander is always legendary, so these start with something to count. Jhoira, Weatherlight CaptainOpen the Historic Payoff pageStatic BuffGives creatures a lasting bonus to power and toughness while it remains on the battlefield, rather than a boost that wears off at end of turn. Garruk's Uprising, Patchwork BannerOpen the Static Buff pageLegends MatterCards that care about legendary cards: rewards for casting them, discounts, or bonuses for each one you control.Open the Legends Matter pageProtectionA creature with protection from something, like a color, is safe from anything with that quality. It cannot be damaged, enchanted or equipped, blocked, or targeted by it, and players remember the four with the word DEBT. It does not stop effects that neither target nor damage, like a board wipe that destroys every creature. ProgenitusOpen the Protection pageMana SinkGives you somewhere useful to spend spare mana, usually through an ability you can activate again and again. Rogue's Passage, Mind StoneOpen the Mana Sink page