If the worst parts of history can repeat themselves, it stands to reason that the best parts can as well. Teferi Illustrated by Titus Lunter Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Admittedly, Whispersilk Cloak does have some mana issues going on: its three mana to commit to the board, and another two mana to put it on something
There are cost reducers and colorless mana dorks, of course: Spawnbed Protector is also ramp, but its also a nice piece of graveyard recursion
However, Commander 2021 gave white and red an emphasis on sacrificing artifacts for big effects, so having an easy way to fill white's card draw problem with an easy way to make expendable artifacts could be immensely useful in Lorehold/Boros decks
Honorable Mention 1 You're probably playing Lands
It originated with the card Falkenrath Aristocrat, which proved to be a role-player during its time in Standard