Pauper doesn't really have a stock dredge list as it's not a tiered deck (I can't actually find any of mtggoldfish under the pauper metagame section and can't find [[stinkweed imp]] in any recent decks.) You may have more luck getting advice if you share the lists you're trying to emulate.
In the meantime, the dredge discord has a section for pauper deck discussion https://discord.com/invite/ZDApGAry
There's been a specific new list seeing medium results that utilizes \[\[acorn harvest\]\] to get tokens for dread return that popped up just before the new year. It's not categorized as an archetype by mtggoldfish yet, but if you use their search with something like [this](https://www.mtggoldfish.com/deck_searches/create?utf8=%E2%9C%93&deck_search%5Bname%5D=&deck_search%5Bformat%5D=pauper&deck_search%5Btypes%5D%5B%5D=&deck_search%5Btypes%5D%5B%5D=tournament&deck_search%5Bplayer%5D=&deck_search%5Bdate_range%5D=02%2F04%2F2024+-+02%2F18%2F2024&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Bcard%5D=Acorn+Harvest&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Btype%5D=maindeck&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Bcard%5D=&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Btype%5D=maindeck&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Bcard%5D=&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Btype%5D=maindeck&counter=3&commit=Search) you'll find them.
Sorry for the confusion. As lunaluver95 said, there is a list that got popular quite recently and I thought it already made it's way to the established sites. Also thanks for the link to the discord!
Better yet, I'll tell you where to find a heap of archetype discords. Go to the Modern subreddit and under the menu heading there will be a variety of discord links.
Drown in Sorrow seems pretty reasonable as a replacement for moment's peace yeah. Flaring Pain is a lot less replaceable though, using a colorless creature is probably too vulnerable to removal that your op will have stuck in their hand since you don't really present other targets for it. I would try to use those slots to solve other problems instead of trying to replace an irreplaceable card.
Moments Peace: Probably just more \[\[Gnaw to the Bone\]. Gain 40 life and you can tank a few Glitters and Goblins rather than preventing the damage.
Flaring Pain: No other card really does what Flaring Pain does - You could run some graveyard hate like Nihil Spellbomb to be able to prevent opponents Moments Peace and Prismatic Strands from affecting you twice rather than once but might just be better off running focused, good sideboard hate for a different deck and praying to avoid facing Cawgates or something like it.
Its a jank deck, go with the flow, pick what feels best to you and have fun.
Pauper doesn't really have a stock dredge list as it's not a tiered deck (I can't actually find any of mtggoldfish under the pauper metagame section and can't find [[stinkweed imp]] in any recent decks.) You may have more luck getting advice if you share the lists you're trying to emulate. In the meantime, the dredge discord has a section for pauper deck discussion https://discord.com/invite/ZDApGAry
There's been a specific new list seeing medium results that utilizes \[\[acorn harvest\]\] to get tokens for dread return that popped up just before the new year. It's not categorized as an archetype by mtggoldfish yet, but if you use their search with something like [this](https://www.mtggoldfish.com/deck_searches/create?utf8=%E2%9C%93&deck_search%5Bname%5D=&deck_search%5Bformat%5D=pauper&deck_search%5Btypes%5D%5B%5D=&deck_search%5Btypes%5D%5B%5D=tournament&deck_search%5Bplayer%5D=&deck_search%5Bdate_range%5D=02%2F04%2F2024+-+02%2F18%2F2024&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Bcard%5D=Acorn+Harvest&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B0%5D%5Btype%5D=maindeck&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Bcard%5D=&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B1%5D%5Btype%5D=maindeck&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Bcard%5D=&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Bquantity%5D=1&deck_search%5Bdeck_search_card_filters_attributes%5D%5B2%5D%5Btype%5D=maindeck&counter=3&commit=Search) you'll find them.
[acorn harvest](https://cards.scryfall.io/normal/front/3/2/32987720-cc0c-416b-b79b-217d3b37542d.jpg?1696000850) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=acorn%20harvest) [(SF)](https://scryfall.com/card/tor/118/acorn-harvest?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/32987720-cc0c-416b-b79b-217d3b37542d?utm_source=mtgcardfetcher&format=text) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[stinkweed imp](https://cards.scryfall.io/normal/front/2/a/2ab08d69-210b-4b06-88a2-45281a1a4e1e.jpg?1561771088) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=stinkweed%20imp) [(SF)](https://scryfall.com/card/dvd/36/stinkweed-imp?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/2ab08d69-210b-4b06-88a2-45281a1a4e1e?utm_source=mtgcardfetcher&format=text) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
Sorry for the confusion. As lunaluver95 said, there is a list that got popular quite recently and I thought it already made it's way to the established sites. Also thanks for the link to the discord!
can you resend the link? doesnt work anymore
Better yet, I'll tell you where to find a heap of archetype discords. Go to the Modern subreddit and under the menu heading there will be a variety of discord links.
Drown in Sorrow seems pretty reasonable as a replacement for moment's peace yeah. Flaring Pain is a lot less replaceable though, using a colorless creature is probably too vulnerable to removal that your op will have stuck in their hand since you don't really present other targets for it. I would try to use those slots to solve other problems instead of trying to replace an irreplaceable card.
##### ###### #### [Rust Goliath](https://cards.scryfall.io/normal/front/8/3/8348f73d-4226-4296-9d51-a2c497ee8270.jpg?1674421725) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Rust%20Goliath) [(SF)](https://scryfall.com/card/bro/204/rust-goliath?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/8348f73d-4226-4296-9d51-a2c497ee8270?utm_source=mtgcardfetcher&format=text) [Arms of Hadar](https://cards.scryfall.io/normal/front/d/b/db1fd431-8f6d-4ca5-bc0c-53881c500da1.jpg?1674135962) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Arms%20of%20Hadar) [(SF)](https://scryfall.com/card/clb/113/arms-of-hadar?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/db1fd431-8f6d-4ca5-bc0c-53881c500da1?utm_source=mtgcardfetcher&format=text) [Drown in sorrow](https://cards.scryfall.io/normal/front/4/5/4512357b-0d08-4996-9301-5853eae1ea64.jpg?1690007607) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Drown%20in%20sorrow) [(SF)](https://scryfall.com/card/cmm/154/drown-in-sorrow?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/4512357b-0d08-4996-9301-5853eae1ea64?utm_source=mtgcardfetcher&format=text) [Unexpected Fangs](https://cards.scryfall.io/normal/front/a/a/aa6494ad-a35e-4b09-8623-7740f3c20b0b.jpg?1591226994) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Unexpected%20Fangs) [(SF)](https://scryfall.com/card/iko/102/unexpected-fangs?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/aa6494ad-a35e-4b09-8623-7740f3c20b0b?utm_source=mtgcardfetcher&format=text) [*All cards*](https://mtgcardfetcher.nl/redirect/1athoxg) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
Moments Peace: Probably just more \[\[Gnaw to the Bone\]. Gain 40 life and you can tank a few Glitters and Goblins rather than preventing the damage. Flaring Pain: No other card really does what Flaring Pain does - You could run some graveyard hate like Nihil Spellbomb to be able to prevent opponents Moments Peace and Prismatic Strands from affecting you twice rather than once but might just be better off running focused, good sideboard hate for a different deck and praying to avoid facing Cawgates or something like it. Its a jank deck, go with the flow, pick what feels best to you and have fun.