In this simplified version of Highlander players can use Standard, Modern, Legacy or Vintage deckbuilding rules.

Singleton is a Casual constructed Magic: The Gathering format.
A deck can have any number of cards named Rat Colony. Debating between removing Chart a Course for either Mastermind's Acquisition or Razaketh's Rite.I think this might help find a Tetsuko Umezawa, Fugitive a little more reliably.. Just a theory but I thought this could be fun.

Both of these cards have rules text that says, “A deck can have any number of cards named.”
In Singleton, access to …

I think it should be banned for Arena singleton.

There's nothing to help colonists once they start top decking and at that point they're probably easy to squash the rats and beat. Card name: Rat Colony Mana Cost: Converted Mana Cost: 2 Types: Creature — Rat Card Text: Rat Colony gets+1/+0 for each other Rat you control. On MTG Arena, the Singleton format is limited to the cards that are on MTG Arena, which means the cards that are legal in Standard, so from Ixalan through War of the Spark.

Singleton, as the name suggests, is a casual format in MTG Arena where players build and play against a deck of at least 60 cards with no more than a single copy of one card (except Basic Lands). In MTG, the term “super friends” usually means a deck that contains a lot of planeswalkers, and usually these builds have 4 or 5 colors. Nobody likes going against these decks…

It forces you to play Rat Colony or build a deck that beats Rat Colony. Magic Arena Deckbuilder is not affiliated with, endorsed, sponsored, or specifically approved by Wizards of the Coast LLC.

The MTG Arena "SINGLETON" event currently allows you to build a deck consisting of nothing but rat colony. I can get the frustration but it's literally a not very thought out deck. Browse MTG Arena Featured Deck Lists or upload your MTGA decks with the most powerful real-time tracker for Magic The Gathering Arena! EDIT: I'm not going to lie, I ran a Rat Colony deck, just because. A deck … Magical Christmasland Turns for Win: Play Island, cast Siren Stormtamer; Play Swamp, cast Rat Colony Number 1; Play Swamp, cast Bontu's Monument When playing a Singleton tournament on MTG Arena, an opponent is bound to have either a Rat Colony or Persistant Petitioner deck. Results are you have 60% of people playing Rats. P/T: (2/1) Expansion: Dominaria Rarity: Common Card rulings (?)

Flavor Text: Wreckage from the Phyrexian Invasion provided the rats with a seemingly unlimited number of breeding grounds.

The MTG Arena Plane-cation Chronicles event is already on its third week and this time we are making a journey to Amonkhet! The popular Singleton format returns, and we will look at the event details, rewards, tips, strategies, and various decklists.

Makes the event boring and why I never play this format on Arena. Easy wins.

[c] Persistent Petitioners [/c] and [c] Rat Colony [/c] override this rule also. There are two key exceptions— Rat Colony and Persistent Petitioners. Magic Arena Deckbuilder may use the trademarks and other intellectual property of Wizards of the Coast LLC, which is permitted under Wizards' Fan Site Policy .