U/R Colossus by twistling on MtGO

Creatures (12)
1 Elder Deep-Fiend
4 Maverick Thopterist
4 Metalwork Colossus
3 Ravenous Intruder

Non-Creature Spells (26)
3 Fling
2 Harnessed Lightning
3 Aethersphere Harvester
1 Cultivator’s Caravan
4 Key to the City
2 Metalspinner’s Puzzleknot
1 Pacification Array
4 Prophetic Prism
4 Servo Schematic
2 Skysovereign, Consul Flagship

Lands (22)
4 Aether Hub
2 Hanweir Battlements
2 Highland Lake
3 Mountain
3 Sanctum of Ugin
4 Spire of Industry
4 Spirebluff Canal

Sideboard (15)
2 Bastion Inventor
2 Dispel
1 Negate
1 Scrap Trawler
4 Scrapheap Scrounger
3 Sweltering Suns
2 Unlicensed Disintegration


Since the banning of Aetherworks Marvel, various U/B Colossus decks have been doing well on MtGO, and might just be an excellent answer to the questions that this format poses. The powerful Metalwork Colossus, supplemented by additional copies through Sanctum of Ugin has proven to be a powerful engine since the Colossus was spoiled. However, the U/B color combination hasn’t been the weapon of choice for all players, as one player on MtGO has done well recently with a U/R version that we’re featuring today.

The main primary difference between this version and the U/B version can be found in the creatures. Maverick Thopterist and Ravenous Intruder both want cheap artifacts in play on the early turns of the game. When put it out on turn 3, Maverick Thopterist has the ability to let you tempo the game out very quickly. Similarly, a Ravenous Intruder with several small artifacts in play threatens to deal an impressive amount of damage, usually forcing the opponent to block it every turn. This deck also has the “free win” aspect to it when you deal a big chunk of damage with Ravenous Intruder and then Fling it.

Each of the deck’s low-CMC artifacts serve a different purpose. Aethersphere Harvester, Cultivator’s Caravan, and Skysovereign, Consul Flagship are all vehicles that can hit hard, Harvester with the added bonus of evasion, Caravan with the ability to add extra mana, and Skysovereign with the ability to mow down the opponent’s board. Key to the City lest you both push through damage and filter cards to find the important cards you need. Metalspinner’s Puzzleknot and Prophetic Prism each draw a card (or two!), while Servo Schematic brings a creature (also a second artifact) along with it.

In the sideboard, this deck can go one of two directions. On one hand, it has the ability to go down the bigger, improvise-control route with cards like Negate, Bastion Inventor, Dispel, and Sweltering Suns. On the other hand, it has a package of Scrapheap Scrounger and Unlicensed Disintegration to allow it to play the beatdown aggressive deck, frequently catching opponents off guard and winning free games here and there.

Here are the changes I would make going forward:


-1 Pacification Array

+1 Elder Deep-Fiend


-1 Scrap Trawler

-1 Dispel

+2 Negate

This is day 178 of Spellsnare.com’s 2017 Deck of the Day column, where each day we’ll feature a different Standard, Modern, or Legacy deck that caught our eye. You can read day 177 here, where we featured a W/B tokens deck that looks to get to grind out Modern’s fair decks.

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