I missed a solid six months of good trading to learn this lesson
Like most Magic: The Gathering cards, the value of Reflecting Pool depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Commander Legends: Battle for Baldur's Gate)
If Aftermath Analyst and Zuran Orb are in play, for example, you can kill your opponents on the stack
There are ten borderless Rooms, a borderless planeswalker, and a rare cycle of borderless lands
In recent Modern League events, Hollow Red decks have managed 5-0 wins with surprising regularity
Having a lot of lands in play allows a control deck to play a planeswalker and a counterspell in the same turn, or a board wipe and a counterspell in the same turn