K-9, Mark I

Legendary Artifact Creature — Robot

Negative — As long as K-9, Mark I is untapped, other legendary creatures you control have ward {1}. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {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.)

Legality

Format	Legality
1v1 Commander	Legal
Canadian Highlander	Legal
Casual	Legal
Commander / EDH	Legal
Commander: Rule 0	Legal
Custom	Legal
Duel Commander	Legal
Highlander	Legal
Legacy	Legal
Leviathan	Legal
Limited	Legal
Oathbreaker	Legal
Planar Constructed	Legal
Tiny Leaders	Legal
Vintage	Legal

Discussion (1)

Nunu312 on Calling All Doctors!

1 month ago

While I might like to suggest Maskwood Nexus... I don't actually think it helps you considering the lack of non-doctor creatures. It may still be useful though for pushing you over the line to reach 13.

Three Tree City is a card that might be good though.

K-9, Mark I is really good. Your board state is very important to you so forcing people to pay just a little extra to interfere with it might help you edge out a game. But at the same time, several of the doctors have to attack to activate their abilities and this will help them not die when the do so. Psychic Paper and can also do something rather similar, but might also get you that extra doctor you need. Brotherhood Regalia is another similar card.

I like where you're going with Glasspool Mimic  ^Flip, but it wont bypass legendary. Instead Sakashima the Impostor and Sakashima of a Thousand Faces can both help get around this. Even if they aren't also land.

Similarly Mirror Box is good... but doesn't synergise with what you're doing as you don't have many duplicators for it to work with. I feel like you were going a bit more for Helm of the Host?

All in all though, these are just minor tweaks, the question is what part of the game does this deck operate around? Many of the doctors are spread over a lot of the game, which leads to them being quite unfocused. But I feel you are bringing this towards being a very upkeep centric deck? The question is how to maximise that. It will help Gallifrey Stands go off, but will also help your suspended cards and other triggered effects.

Lithoform Engine could help you in several ways, duplicating doctors, but also duplicating the trigger effect of Gallifrey Stands. While not quite as useful, Annie Joins Up will also double the triggers on your doctors. Roaming Throne is also a trigger doubler... though it's a little dull because it's in every bloody deck now.

Paradox Haze similarly gets you that extra upkeep, but it falls into the problem that a lot of such things do... One extra upkeep per turn is good, but a turn is a long time. While it may be the best option, a way to get creatures into play might be a better slot in your deck?

But there is also another two problems all decks have, mana and getting the right cards. Firstly, mana. You have a lot of expensive cards and you want to be able to cast all of them. Lotus Petal is good... but I don't see it being better than a normal mana rock as you have no ability to recurse it for free. Herald's Horn would probably be better as it can remove about 25% off the cost of all your important cards, and lets you take a peek for them. Leyline of the Guildpact can help with mana fixing, though wont actually set you ahead, as would Three Tree Mascot (which also counts as a doctor). Patchwork Banner is a newer mana rock that helps buff your guys a little. Mirari's Wake is also a solid mana doubler, if a little expensive.

Kinnan, Bonder Prodigy is also very cheap and solid, though works better if you have more mana rocks.

You've got a bit of recursion from The Eighth Doctor, which is more likely to turn up due to your commander, but that means that you can take advantage of the search lands. It would require changing out a lot of the land you do have, but if you use the typed dual lands like Canopy Vista or Godless Shrine (because you may need 1 mana more than 2 life), you can search for them and then recurse the search land like Flooded Strand (which could search for any dual land as long as it's part plains or part island). If you want to find what land works like this it's best to google mtg land or some such, there are whole websites dedicated to it. Considering you're running 5 colours, Bloom Tender and Faeburrow Elder can also help supercharge your mana.

As for getting cards, I feel like you've got a decent search to get the doctors, but you are a little lacking in turn to turn draw. This often means you'll end up sitting in a game with only one card to play a turn and that's not fun. The One Ring is another groan worthy staple for how good it is (and therefore in everything), but only really relevant if you're running proxies. Collector's Vault is something I'm fond of, while it wont give you card advantage, it's cheap and you don't really mind discarding doctors anyway. Sylvan Library is also insanely powerful.

A lot of the search you do use is really expensive as well. Conflux and Diabolic Revelation are good... but they each cost a huge amount of mana, after which you still have to actually cast the cards. These are things that might help you on turn 10+ without a lot of acceleration. Instead something to get your creatures directly onto the battlefield like Victimize or possibly Pyre of Heroes.

Anyway, that's enough from me for now. Remember, look for cards that get you to your win conditions. Omniscience is great, but only if you can cast it AND if you've got the cards to play AND they are cards that lead you to victory. Perhaps 1 mana per turn or 2 cards might have been more useful.