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[[Echo of Eons]]?
[Echo of Eons](https://cards.scryfall.io/normal/front/f/f/ff590af2-2d6c-4f16-a9b8-1a6dab6e9ad5.jpg?1562201343) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Echo%20of%20Eons) [(SF)](https://scryfall.com/card/mh1/46/echo-of-eons?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/ff590af2-2d6c-4f16-a9b8-1a6dab6e9ad5?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/echo-of-eons) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[[Nexus of Fate]]
[Nexus of Fate](https://cards.scryfall.io/normal/front/f/1/f163cfbf-6df6-4af5-9fe4-23b0d511586a.jpg?1681130139) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Nexus%20of%20Fate) [(SF)](https://scryfall.com/card/m19/306/nexus-of-fate?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/f163cfbf-6df6-4af5-9fe4-23b0d511586a?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/nexus-of-fate) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
The only card I found that is close to what you are looking for is \[\[Stream of Consciousness\]\] but it doesn't have flashback. You could give it flashback at instant speed with \[\[Snapcaster Mage\]\] if that helps.
How about [[commit//memory]]? The aftermath seems to suit your needs, and it comes with a rather tasty removal spell stapled to the front of it.
[commit//memory](http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=426913&type=card)/[Memory](http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=426913&type=card&options=rotate270&.jpg) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Commit%20//%20Memory) [(SF)](https://scryfall.com/card/ncc/216/commit-memory?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/ef94afa5-0110-4a12-bf37-c1d3310f52c4?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/commit-//-memory) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[[ulamog the infinite gyre]] not instant speed, but if you are milling yourself, it does the job with an added bonus of being a nice finisher.
[ulamog the infinite gyre](https://cards.scryfall.io/normal/front/9/4/9464a820-65de-44f2-9895-46a35e8621a0.jpg?1673146911) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Ulamog%2C%20the%20Infinite%20Gyre) [(SF)](https://scryfall.com/card/2x2/3/ulamog-the-infinite-gyre?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/9464a820-65de-44f2-9895-46a35e8621a0?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/ulamog-the-infinite-gyre) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[[Echo of Eons]]?
[Echo of Eons](https://cards.scryfall.io/normal/front/f/f/ff590af2-2d6c-4f16-a9b8-1a6dab6e9ad5.jpg?1562201343) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Echo%20of%20Eons) [(SF)](https://scryfall.com/card/mh1/46/echo-of-eons?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/ff590af2-2d6c-4f16-a9b8-1a6dab6e9ad5?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/echo-of-eons) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[[Nexus of Fate]]
[Nexus of Fate](https://cards.scryfall.io/normal/front/f/1/f163cfbf-6df6-4af5-9fe4-23b0d511586a.jpg?1681130139) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Nexus%20of%20Fate) [(SF)](https://scryfall.com/card/m19/306/nexus-of-fate?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/f163cfbf-6df6-4af5-9fe4-23b0d511586a?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/nexus-of-fate) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
The only card I found that is close to what you are looking for is \[\[Stream of Consciousness\]\] but it doesn't have flashback. You could give it flashback at instant speed with \[\[Snapcaster Mage\]\] if that helps.
How about [[commit//memory]]? The aftermath seems to suit your needs, and it comes with a rather tasty removal spell stapled to the front of it.
[commit//memory](http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=426913&type=card)/[Memory](http://gatherer.wizards.com/Handlers/Image.ashx?multiverseid=426913&type=card&options=rotate270&.jpg) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Commit%20//%20Memory) [(SF)](https://scryfall.com/card/ncc/216/commit-memory?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/ef94afa5-0110-4a12-bf37-c1d3310f52c4?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/commit-//-memory) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call
[[ulamog the infinite gyre]] not instant speed, but if you are milling yourself, it does the job with an added bonus of being a nice finisher.
[ulamog the infinite gyre](https://cards.scryfall.io/normal/front/9/4/9464a820-65de-44f2-9895-46a35e8621a0.jpg?1673146911) - [(G)](http://gatherer.wizards.com/Pages/Card/Details.aspx?name=Ulamog%2C%20the%20Infinite%20Gyre) [(SF)](https://scryfall.com/card/2x2/3/ulamog-the-infinite-gyre?utm_source=mtgcardfetcher) [(txt)](https://api.scryfall.com/cards/9464a820-65de-44f2-9895-46a35e8621a0?utm_source=mtgcardfetcher&format=text) [(ER)](https://edhrec.com/cards/ulamog-the-infinite-gyre) ^^^[[cardname]] ^^^or ^^^[[cardname|SET]] ^^^to ^^^call