While getting rid of basics is rarely optimal, some decks are greedy, and this can help prune named basics like Snow-covered Swamp or Swamp in Field of the Dead decks
Thrasios and Tymna are a team up of Tidus, Zanarkand Fayth and Cecil Harvey
Take Kataki, War's Wage, for example
TCGplayers pricing is even trickier once all the extra costs are factored in
The combo can be executed with only a few cards, which makes it quite simple as well: Cast Venture Deeper , targeting your opponent Cast Merfolk Secretkeeper from adventure zone Cast Ashnods Altar Cast Chromatic Orrery to turn colorless mana into blue mana Cast Lier, Disciple of the Drowned from the commander zone Sacrifice Merfolk Secretkeeper , using Ashnods Altar Cast Venture Deeper from graveyard, using Liers ability Repeat this cycle infinitely until your opponent mills all their cards in a single turn using the mana produced by Ashnods Altar and Chromatic Orrery
You will need a lot of card draw and ways to stall out the game so you can amass the necessary combo pieces