Brain Fusion (Abusing a loophole)

Modern Combo Control Jank

Firebones675

Instant (15)

• 4x Cryptic Command
• 2x Far / Away
• 2x Mana Leak
• 3x Path to Exile
• 2x Remand
• 2x Spell Snare

Sorcery (17)

• 4x Beck / Call
• 2x Compulsive Research
• 3x Gitaxian Probe
• 4x Serum Visions
• 3x Sleight of Hand
• 1x Supreme Verdict

Artifact (4)

• 4x Brain in a Jar

Planeswalker (1)

• 1x Sorin, Grim Nemesis

Creature (1)

• 1x Thing in the Ice  ^Flip

Land (22)

• 1x Celestial Colonnade
• 1x Drowned Catacomb
• 4x Flooded Strand
• 3x Glacial Fortress
• 3x Hallowed Fountain
• 4x Island
• 3x Plains
• 1x Polluted Delta
• 1x Swamp
• 1x Watery Grave

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Sideboard

Instant (6)

• 1x Hurkyl's Recall
• 2x Rest for the Weary
• 3x Wear / Tear

Sorcery (2)

• 2x Supreme Verdict

Enchantment (4)

• 2x Leyline of Sanctity
• 2x Rest in Peace

Creature (3)

• 3x Monastery Mentor

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Maybeboard

Instant (2)

• 1x Anguished Unmaking
• 1x Jeskai Charm

Sorcery (3)

• 1x Catch / Release
• 1x Dark Petition
• 1x Day's Undoing

Planeswalker (1)

• 1x Jace, Architect of Thought

Creature (1)

• 1x Notion Thief

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Saw Caleb Durwood of channelfireball using a brain combo deck and decided to build my own version. The deck uses a loophole in the rules (specifically 702.101a) to be able to cast a fused card for cheap off of Brain in a Jar.

Here's how it works.

1. The brain says you can cast spells without paying its mana cost if its converted mana cost is equal to the number of counters on Brain in a Jar
2. In every zone except for the stack, split cards have all characteristics of both halves. So Beck / Call has a converted mana cost of 2 and 6.
3. You have 2 counters on Brain in Jar, therefore you can cast any cards with a CMC of 2, even if they also have another CMC.
4. Fuse says "You may cast one or both halves of this card from your hand".
5. Since you can cast this card without paying its mana cost, you might as well cast both sides at the same time by using Fuse.

In short, with by putting a second charge counter on a brain, you can cast both sides of Beck / Call for 1 mana.

3 quick points:

1. If you reveal a split card to Sorin, Grim Nemesis, the life your opponents lose is the total cmc of both halves. (revealing Beck / Call domes them for 8.)
2. Day's Undoing is another card designed to be cast only with the brain in a jar, specifically on your opponents turn. Starts off your turn with a fresh grip of counterspells. Who said you couldn't play a power 9 card in modern? (Looking at you Timetwister)
3. Against certain decks (jund and burn come to mind) you might not have time to fully exploit the brain or be faced with too much hate for you brain. If you need/want to, you can side out the beck/call and some combination of brains and other slower spells (in addition to other normal sideboarding) and plan on just winning with Monastery Mentor

Date added	7 years
Last updated	2 years
Legality	This deck is not Modern legal.
Rarity (main - side)	1 - 5 Mythic Rares 31 - 5 Rares 10 - 3 Uncommons 10 - 2 Commons
Cards	60
Avg. CMC	2.82
Tokens	Bird 1/1 W, Monk 1/1 W, Vampire Knight 1/1 B
Folders	nice
Based on	Brain Transplant - Modern Brain in a Jar Combo hannibal6 MDN