K-9, Mark I
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
- Set
- Doctor Who (WHO #953)
- Rarity
- Rare
- Mana value
- 1
- Released
- 2023-10-13
- Artist
- Narendra Bintara Adi
- EDHREC rank
- #3,441
- Colour identity
- Finishes
- Foil
- Served from
- Local database
Commander bracket
Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules
EDHREC
Combos
Not part of any combo on Commander Spellbook.
Commander recommendations
Top synergy 50
Played far more in this commander's decks than elsewhere.
- Ioreth of the Healing House
- Iymrith, Desert Doom
- Rivendell
- Combat Research
- Arwen's Gift
- Callaphe, Beloved of the Sea
- Thassa, God of the Sea
- Relic of Legends
- Heroes' Podium
- Grazilaxx, Illithid Scholar
- The Reality Chip
- Bident of Thassa
- Patriar's Seal
- Nezahal, Primal Tide
- Teferi, Mage of Zhalfir
- Eluge, the Shoreless Sea
- Champion's Helm
- Blackblade Reforged
- Malcolm, Alluring Scoundrel
- Sun Quan, Lord of Wu
- Excalibur, Sword of Eden
- Kira, Great Glass-Spinner
- Crystal Skull, Isu Spyglass
- Unctus, Grand Metatect
- Aqueous Form
- Aetherize
- Atemsis, All-Seeing
- The Blue Spirit
- Desynchronization
- Piper Wright, Publick Reporter
- Adric, Mathematical Genius
- Kairi, the Swirling Sky
- Esior, Wardwing Familiar
- Sakashima the Impostor
- Imprisoned in the Moon
- Birthday Escape
- Castle Vantress
- Mirror of Galadriel
- The Mechanist, Aerial Artisan
- The Peregrine Dynamo
- Plaza of Heroes
- Baral, Chief of Compliance
- Minamo, School at Water's Edge
- The Key to the Vault
- Lonely Sandbar
- Karn's Temporal Sundering
- Kiora, the Rising Tide
- Louisoix's Sacrifice
- Preordain
- Glorious Gale
Most included 50
Highest share of decks running them, distinctive or not.
- Island
- Sol Ring
- Ioreth of the Healing House
- Rivendell
- Sapphire Medallion
- Aetherize
- Counterspell
- Brainstorm
- Pongify
- Iymrith, Desert Doom
- High Tide
- An Offer You Can't Refuse
- Reliquary Tower
- The Reality Chip
- Bident of Thassa
- Mystic Sanctuary
- Arcane Signet
- Thassa, God of the Sea
- Ponder
- Rapid Hybridization
- Combat Research
- Nezahal, Primal Tide
- Eluge, the Shoreless Sea
- Frantic Search
- Relic of Legends
- Arwen's Gift
- Callaphe, Beloved of the Sea
- Reality Shift
- Preordain
- Heroes' Podium
- Grazilaxx, Illithid Scholar
- Teferi, Mage of Zhalfir
- Negate
- Patriar's Seal
- Swiftfoot Boots
- Castle Vantress
- Arcane Denial
- Champion's Helm
- Blackblade Reforged
- Midnight Clock
- Malcolm, Alluring Scoundrel
- Crystal Skull, Isu Spyglass
- Aqueous Form
- Imprisoned in the Moon
- Teferi's Ageless Insight
- Wizard Class
- Unctus, Grand Metatect
- Solemn Simulacrum
- Thought Vessel
- Otawara, Soaring City
Format legality
Rulings
- 2023-10-13
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.
- 2023-10-13
An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.
- 2023-10-13
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.
- 2023-10-13
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.
- 2023-10-13
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.
- 2023-10-13
Once the game begins, your two commanders are tracked separately. If you cast one, you won't have to pay an additional
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. - 2023-10-13
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.