Nexus of fate was the wincon for that list, but not the engine. Being able to double your effective mana and play your turn and your opponents turn really was. That deck can easily still exist between Frilled Mystic, Nightpack ambusher, and this.
It sounds like you're getting your Simic Nexus and Simic Flash decks mixed up. Simic Flash doesn't use/want/need Wilderness Reclamation and, indeed, would like this card.
Anyone that thinks that a top 8 performance in 7 round events is a solid metric for card/deck playability should know about the time I made top 8 of a 65 player event with 4 Shardless Agent, 4 Daze, and 0 ways to manipulate the top card(s) of my library in my maindeck. That deck was trash despite this result and the win I got at a 20 person Mox Pearl event.
In standard, there is a deck that is basically just instant speed everything running wilderness reclamation that would happily run 4 of these in a heart beat, and in Modern I suspect a Faeries deck may rise out of this set where this would be very well positioned..
It's important to note that Simic Nexus, the only Wilderness Reclamation deck in M20 Standard with meaningful results, might not be a home for Brazen Borrower because the namesake Nexus of Fate rotates with the release of Throne of Eldraine.
@smmenen I'm happy that deep discussion about potential new cards is being recorded well ahead of time to avoid snafus similar to the M20/NYSE podcast release issue. My concern is that noteworthy cards released after this first recording session won't be reviewed, such as strong rares/mythics that are still unreleased and sleeper commons that might Slash Panther the format. Either way, I look forward to all the synergies and applications that are discussed about Wishclaw Talisman.
Any Fastbond deck that is looking to cast Life from the Loam is going to feel underpowered without access to Bazaar of Baghdad. Still, decks like Turbo/Slow/Hogaak Depths and AmuLIT offer those that are looking to cast Fastbond reasonable shells that don't lose a core strategy to their budget.
Another option would be Vintage Freebird. @IAmActuallyLvl1 has been doing an incredible amount of work with this deck that started as a powerful Legacy deck. The Legacy version almost had an undefeated run in the Legacy Challenge, losing in the finals.
The powered version of this deck runs Black Lotus, Mox Jet, and Mox Ruby. I've replaced them with the two extra lands that were in the Legacy build and the third Bedlam Reveler. One benefit of this deck for EW is that the maindeck is only two cards away from being Legacy legal!
Finally, don't play G/W Hatebears. Playing unpowered doesn't mean you should play underpowered. There are still plenty of viable, strong decks that exist without the artifact mana, especially in a post-Mental Misstep world.
Vintage Freebird (Unpowered)
In this case, "budget" means she can play it in Vintage Champs and qualify for the budget prize.
I do like G/W Hate Bears. Now I need to find a mostly updated list.
There’s probably a no Bazaar/power Survival build. I’d probably start BUG to use Deathrite and Bazaar Trademage, but a GRx build using Faithless Looting might also do well now that Mental Misstep is restricted.
Fae of Wishes - 1U
Creature - Faerie Wizard
1U, Discard two cards: Return Fae of Wishes to its owner's hand.
Sorcery - Adventure
You may choose a noncreature card your own from outside the game, reveal it, and put it into your hand.
I can’t speak to the playability of cards that are both a reusable Wish and a body, but this card opens up some cool deck configurations for blue decks.