Thopter/Sword Copycat by thenobodys on MtGO

Creatures (3)
3 Felidar Guardian

Non-Creature Spells (37)
4 Saheeli Rai
4 Serum Visions
2 Path to Exile
4 Whir of Invention
2 Altar of the Brood
2 Ensnaring Bridge
2 Liquimetal Coating
4 Mishra’s Bauble
3 Mox Opal
1 Relic of Progenitus
2 Sword of the Meek
1 Talisman of Progress
3 Thopter Foundry
1 Welding Jar
2 Leyline of Sanctity

Lands (20)
4 Flooded Strand
2 Glimmervoid
1 Hallowed Fountain
5 Island
1 Plains
2 Polluted Delta
4 Seachrome Coast
1 Steam Vents

Sideboard (15)
3 Blood Moon
2 Day of Judgment
2 Ethersworn Canonist
2 Grafdigger’s Cage
2 Nahiri, the Harbinger
1 Phyrexian Revoker
1 Pithing Needle
2 Wear//Tear


Was one combo in your deck just not enough for you? Do you miss Standard’s least favorite infinite two-card combo? Fear not! This deck combines the infinite Coypcat combo that was recently banned in Standard with the Thopter Foundry + Sword of the Meek combo which was unbanned in Modern, but hasn’t taken the format by storm like many predicted. Let’s dive in!

Felidar Guardian and Saheeli Rai are auto-includes, and the 3/4 split makes a lot of sense. While they obviously are included to combo with each other, Saheeli Rai has other powerful applications in this deck by copying artifacts. Similarly, Thopter Foundry and Sword of the Meek‘s inclusions shouldn’t be a surprise, and the 3/2 split also seems correct. Thopter Foundry has good synergy with the artifact theme of the deck, giving the deck some thopters when needed. Sword of the Meek, on the other, doesn’t pair well with the rest of the deck.

Whir of Invention is perhaps the most important card in this deck. This deck has many cheap artifacts that tend to sit around doing nothing. Whir turns them into mana-producers, and Whir itself can find either half of Thopter/Sword, Ensnaring Bridge to stop the opponent in their tracks, Relic of Progenitus to hate against graveyard decks, Altar of the Brood to combo with Copycat without attacking, or Welding Jar to save an artifact, or even Felidar Guardian if there’s a Liquimetal Coating in play.

Leyline of Sanctity seems like an odd inclusion in this deck in the mainboard, but I would imagine that a singular discard spell is seriously bad news for this deck, so Leyline could be a very valuable inclusion in many matchups. Path to Exile also seems like a rather odd inclusion for a deck that’s just interesting in comboing as fast as possible. However, having interaction of some sort in this Modern format is critical.

Despite being an artifact-hungry 2 1/2 color deck, this deck somehow manages to fit Blood Moon into the sideboard. My inclination is that it’s a little aggressive, but I’m certainly not the authority on this deck, so I’ll keep it in. I should mention that Day of Judgment is included over Wrath of God because Day won’t kill a friendly Felidar Guardian if it’s been hit with both Liquimetal Coating and Welding Jar. That’s the definition of cheeky.

This deck has a million moving pieces, but the power level is undeniably there. I would highly recommend picking it up for a good and mind-wracking time. Here are the changes I would make going forward:


-1 Altar of the Brood

+1 Talisman of Progress


No changes.

This is day 143 of’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 142 here, where we featured a Modern combo deck that uses Collected Company as a powerful engine to find its combo pieces.

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