Puschkin

No, I won't. This is neither for 1-on-1 nor for competition. For one, lots of 1-ofs and 2-ofs is my style, I like to make use of my collection. Secondly, what Wickeddarkman said. Additionally there are more reasons why having 1-ofs is actually a good thing in some circumstances. I have provided a card breakdown and explained every single card choice, have you red it? Probably not since some of them include explanations for this issue. Here is what I wrote about Valor Made Real, a card I run just a single copy of:

"I always play against the same bigger group of players and I usually keep my decks for many years. Which means after a while they will know what my decks can do. This is why I run single cards like this one to keep them on their toes. If I played this just once, from now on, even in subsequent games, my buddies will be cautious to attack me, because even if I don't have a Guardian or Wall, I might still be able to block and kill everything."

In short:
It's a matter of experienced deckbuilders playing in an environment with experienced players. And when I say "experienced" I mean "playing this game since 1994".

Don't have time for shenanigans. I hardly visit this site anymore and didn't even have the time to actually build many of the decks I created here.

Well, this has been around forever with variations like Land's Edge which I think is superior, but in the end, all versions are "stupid" :)

Are the artifact lands banned in pauper? Because if not, they are probably a better way to enable Kuldotha Rebirth. Right now both Rebirth and Ichor Wellspring are dead cards on their own.
I also question that late game combo. It may be infinite damage but 2 of the needed 3 cards are off-colour, 2 seperate ones I might add, and you have a grand total of 4 sources of that mana, EACH. I don't feel like calculating the odds of that to happen but I am sure they are pretty low.

Vanquisher's Banner could be cut for example. You have 21 creatures and only 13 of them are actually walls, so the banner isn't all that useful. I'd also rather have a backup like Assault Formation than something like Brave the Sands that is only useful if everything else is in place. And then there is your heavy focus on planeswalkers like Steady Progress or Oath of Teferi, cards that have no synergy with your commander or main theme of the deck.

No Assualt Formation? That should be an auto-include!
Also, check out Tower Defense! You won't get a better deal for just two mana ...

Maybe Meekstone?

Haha, that sounds so like you :)
Still in danger of losing the house!?
I haven't managed to visit you yet ... which is getting increasingly difficult because I have a spawn now and he is very incomplete :)

Well, I was asking for the most versatile cards you can think of. Something like Daxos which gives you access to cards outside of your deck each turn while dealing damage AND gaining life. Those are hard to find (unlike Insidious Will or Charms), hence my request. When you think about versatility, something that can be useful in countless situations, what pops up in your mind?

Heya, anyone still around?

This time I ask you: What's the most versatile, universally useful cards you know for multiplayer?
Asking for this baby:
https://www.mtgvault.com/puschkin/decks/keep-forever/

Does every creature need to be a wall? You could seriously improve the deck if you ran something like Perimeter Captain instead of weak walls like Coral Barrier.

What's Zephyr Net or Aurafication for!?

The lack of any removal and other utility is also worrysome.

It's like you just made a database search for the word "wall" and added cards from the result list until you had enough ...

Try the take out ;)

No Su-Chi!?

Puppet Strings! Either tap opponent's creatures so you can assassinate them or untap one of your assassins to kill another one! It's also harder to kill than Rathi Trapper (who isn't an assassin anyway).

Since the deck is Vintage/Legacy now, you could upgrade those Distress to Hymn to Tourach.

And I recommend a Bojuka Bog or two replacing Swamps. They may work against Mortivore but there are so many creatures out there that come back from the grave or do other nasty things from the grave that I think graveyard removal is a necessity, especially in a deck that focusses on creature kill.

Well, I was very conervative when trading and never stopped playing. Also, tinkering with existing decks and updating them from time to time is more fun for me that building the newest gimmick deck everyone else does.
That and in many cases old cards got outdated by more powerful cards, why would you need a Sol Grail if you could have Darksteel Ingot instead? In this case, nobody every wanted to trade for my Uncle Istvan and that's how he ended up in my deck.

I think you can't. I also think nobody cares :)

No Leveller!?

P.P.S.:
Or better yet: You upgrade those Utopia Sprawls to Weirding Wood :)

P.S.:
a) forget about Mystic Snake, it has double blue, too :P
b) If you add Guided Passage you might want to replace those Utopia Sprawls with lands

I like this deck and the various choices!

* But again I think the creature count is kind of low. As with some of your other decks you run a tad bit too many creature enhancers for too few actual creatures. I know that this list is 58 cards but even if you add two more creatures it's still kind of low. Suggestions:
- Hull Breach could be replaced with something like Indrik Stomphowler, Acidic Slime or Trygon Predator.
- Cut 1-2 of the least useful enhancers. For example I like Samut, but he does nothing if you have no creatures.
- Cut the Savage Summonings. They are good cards but you still have the Rythm of the Wilds to combat counterspells.
Possible creatures for the open slots (there are of course hundreds of candidates):
- Jugan the Rising Star, Cockatrice, Horizon Chimera or Silklash Spider (you lack flyers)
- Dragon Lair Spider
- Khenra Charioteer
- Forgotten Ancient
- Wilderness Elemental

* I think this is one of the few decks where Guided Passage would be a great card. There is no "safe" option among the creatures, you either get a nasty creature or a smaller one that will get you additional cards. Guided Passage would be better than Signal the Clans amd Impulse. I do have a playset that I am not currently use, I can borrow them if you want.

* You are dangerously low on land with just 20. You do have Utopia Sprawl, the Lantern, Domri and Guilded Lotus. However, I think Guilded Lotus is too expensive for this deck. If you are stuck on 4 mana you can't cast the Lotus. Maybe use something cheaper like Darksteel Ingot or Sol Ring instead. Maybe even another Land.

* Take Possession is a good card but blue is a just a splash in this deck and Take Possession costs double blue. Also, while it has split second, the opponent can just disenchant it later and get his stuff back while you invested so much mana. So I think it's not worth the trouble (in this deck). Mystic Snake instead?

Let me add that nothing of all of this is urgent, this deck looks quite good as it is. my suggestions are mostly Kleinigkeiten :)

You should play this more often - haven't seen it since you made the changes and it looks good now!