The ability to easily tap a land is great at slowing folks down by doing it in their upkeep before they untap, or twinned with land destruction and other tempo effects, or to lock out a color, or to tap a land that really needs to be shut down, such as Maze of Ith
English headliners (examples): Manga Rare Shanks an early flagship chase that anchored many collectors want lists
Notably, a discovery counter causes the card to go back to the graveyard if it's removed
Alchemy: Eldraine Card Image Gallery Alchemy: Eldraine , our newest 30-card release coming to Alchemy and Historic formats, arrives on MTG Arena October 10, 2023
While I probably wouldn't run out and spend $200 on a playset of Teferi, Hero of Dominaria just to play Blue-White Mill, you should definitely run them if you already have copies in your collection
Being able to get a non-damaged Pokmon back to hand opens up additional possibilities, such as combining Penny with Mimikyu V (Battle Styles) to use Dummy Doll multiple turns in a row