Well, a Lurrus Burn list 5-0’d with 4x Seal of Fire!

https://magic.wizards.com/en/articles/archive/mtgo-standings/modern-league-2020-04-21

COERT (5-0)

Creature (14)
4 Eidolon of the Great Revel
4 Goblin Guide
2 Grim Lavamancer
4 Monastery Swiftspear
Sorcery (4)
4 Lava Spike
Instant (18)
4 Boros Charm
4 Lightning Bolt
4 Lightning Helix
4 Searing Blaze
2 Skullcrack
Enchantment (4)
4 Seal of Fire
Land (20)
2 Arid Mesa
2 Bloodstained Mire
1 Fiery Islet
4 Inspiring Vantage
3 Mountain
2 Sacred Foundry
4 Sunbaked Canyon
2 Wooded Foothills
60 Cards
Sideboard (15)
2 Skullcrack
4 Kor Firewalker
1 Lurrus of the Dream Den
3 Path to Exile
3 Smash to Smithereens
2 Tormod’s Crypt

I had forgotten! Check out my above comment from four days ago.

Ah, I see! Will be exciting to see if that sort of tech catches on. As far as I can tell, Lurrus is a must-include in the deck either way, but I wonder if such smaller concessions to the companion will be made.

Well, Shadow does enjoy Collected Brutality in part for the lifegain dimension—it gives the deck a lot more flexibility in race-based matchups like Burn. Having a pre-tutored, always-ready three-mana lifegain creature in a deck that walks a fine line with its life total strikes me as crazy utility for the deck, even if it doesn’t obviously play into its stated Plan A.

As David pointed out in his follow-up piece (https://quietspeculation.com/here-be-questions-ikoria-spoilers-week-2/), though, I had completely forgotten about Street Wraith, which is technically a permanent. While sideboard Lurrus seems far better to me than mainboard Liliana, I doubt it trumps Wraith for the Shadow deck, although perhaps a re-imagining could work. I know some decks I’ve built that splash Shadow as a package (https://quietspeculation.com/introducing-temur-shadow/) have foregone Wraith entirely, and now there’s a no reason to look into that sort of build.

To be fair, I wasn’t really referring to a whole-scale reimagining of the deck, just more speculating that with the addition of Lurrus, *maybe* the first copy of something like Seal of Fire might be better than the 4th copy of a Rift Bolt.

I do think the odd Vexing Devil build may become more common. But overall, I doubt it. Lurrus is great in that shell even if it goes unchanged. Significantly altering the mainboard to account for Lurrus would mean that Burn expects to hit 3-4 mana in most of its games, which I’m not sure it does. But I don’t doubt that a deck will be built around more explicitly abusing card, as we saw with Unearth.