Arcane Foundry › Commanders › K-9, Mark I
K-9, Mark I
Legendary Artifact Creature — Robot Dog · {U} · Blue commander
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.)
Build a K-9, Mark I deck →
What K-9, Mark I actually does
Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.
- Activated ability{1}{U}, {T}: Target legendary creature can't be blocked this turn.
- Static ability · keyword_grantAs long as K-9 is untapped, other legendary creatures you control have ward {1}.
- Keyword · negativenegative
- Keyword · affirmativeaffirmative
What a K-9, Mark I deck needs
Plays as legends. What the commander asks of the other 99 — read from the card and checked by hand.
- legendary creatures (they have ward {1} while it is untapped, and its tap makes one unblockable)
- a big legendary attacker with combat-damage payoffs to make unblockable
- haste and untap effects that reach the commander (a tap ability is unusable the turn it lands)
The K-9, Mark I deck plan
The roles the Forge fills for this commander, and how many cards of each.
- 11× Put haste on the commander the turn it resolves — a tap ability is unusable otherwise
- 16× A permanent that does something every turn it is on the battlefield — the deck's body, for a commander whose text asks for nothing specific
- 8× Untap the commander so the tap ability is an engine, not a one-shot
- 5× Actually remove one problem permanent — preventing its damage is not removing it
- 9× Find the exact card the plan needs
- 2× Answer a spell or ability before it resolves
- 1× Answer a whole board at once
- 7× Refill your hand
- 2× Keep a permanent you control alive through removal
Best cards for K-9, Mark I
Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.
Put haste on the commander the turn it resolves — a tap ability is unusable otherwise
- Thousand-Year Elixir3 mana
- Lightning Greaves2 mana
- Swiftfoot Boots2 mana
- Akroma's Memorial7 mana
- Lavaspur Boots1 mana
- Sting, the Glinting Dagger2 mana
- Krang, Utrom Warlord9 mana
- Haunted Cloak3 mana
A permanent that does something every turn it is on the battlefield — the deck's body, for a commander whose text asks for nothing specific
- Crashing Drawbridge2 mana
- Bontu's Monument3 mana
- Oketra's Monument3 mana
- Hazoret's Monument3 mana
- Rhonas's Monument3 mana
- Twinning Staff3 mana
- K-9, Mark I1 mana
- Mana Vault1 mana
Untap the commander so the tap ability is an engine, not a one-shot
- Freed from the Real3 mana
- Pemmin's Aura3 mana
- Sting, the Glinting Dagger2 mana
- Umbral Mantle3 mana
- Unstoppable Plan3 mana
- Genji Glove5 mana
- Honor-Worn Shaku3 mana
- Sword of the Paruns4 mana
Actually remove one problem permanent — preventing its damage is not removing it
- Reality Shift2 mana
- Pongify1 mana
- Rapid Hybridization1 mana
- Resculpt2 mana
- Umezawa's Jitte2 mana
- Titan's Presence3 mana
- Icy Prison2 mana
- Kozilek's Command2 mana
Find the exact card the plan needs
- Reshape2 mana
- Mask of the Mimic1 mana
- Long-Term Plans3 mana
- Whir of Invention3 mana
- Merchant Scroll2 mana
- Mystical Tutor1 mana
- Muddle the Mixture2 mana
- Personal Tutor1 mana
Answer a spell or ability before it resolves
- Mindbreak Trap4 mana
- Fierce Guardianship3 mana
- Force of Negation3 mana
- Force of Will5 mana
- Flare of Denial3 mana
- Pact of Negation0 mana
- An Offer You Can't Refuse1 mana
- Arcane Denial2 mana
Answer a whole board at once
- Desynchronization4 mana
- Wave Goodbye4 mana
- Whelming Wave4 mana
- Consuming Tide4 mana
- Selective Obliteration5 mana
- Evacuation5 mana
- Perplexing Test5 mana
- Cyclonic Rift2 mana
Refill your hand
- Mystic Remora1 mana
- Skullclamp1 mana
- Curiosity1 mana
- Wizard Class1 mana
- Rhystic Study3 mana
- Faerie Mastermind2 mana
- The One Ring4 mana
- Combat Research1 mana
Keep a permanent you control alive through removal
- Cryptothrall4 mana
- Lost in the Maze2 mana
- Lightning Greaves2 mana
- Swiftfoot Boots2 mana
- Eldrazi Monument5 mana
- Commander's Plate1 mana
- Mithril Coat3 mana
- Akroma's Memorial7 mana