David Whitehouse claims there is a game-winning two-card combo in Modern that "no one knows about." That may be a bit hyperbolic, but we certainly haven't encountered this combo before, so... guess that checks out, David. Nice work!
The two cards are Skill Borrower and Boggart Harbinger. The actual combo involves two more cards, but Boggart Harbinger tutors them, you don't need them in hand before you combo off.
With Skill Borrower on the battlefield, cast Boggart Harbinger and put Kiki-Jiki, Mirror Breaker on the top of your library. Tap Skill Borrower using Kiki-Jiki's ability and target Skill Borrower, creating a hasty copy of Skill Borrower that also has Kiki-Jiki's ability.
Keep doing that until you have an arbitrarily large number of tapped Skill Borrowers, then tap the last one targeting Boggart Harbinger. When the copy of Boggart Harbinger enters the battlefield, search for Mogg Fanatic and put it at the top of your library. All your Skill Borrower copies now have "Sacrifice [Card name]: [Card name] deals 1 damage to target creature or player."
Sacrifice them all to deal lethal damage to your opponent's face!
Meryn is a Twitch streamer and YouTuber who plays spicy, unconventional Modern decks.
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