Delaying low cost Artifacts and Creatures typically means slowing down your opponents or removing wide boards of Tokens, which can net you an extra turn or two for setup
Narrowness of Effect Some cards are very broad in their applications, while some cards are very narrow
Best Menace Creatures While Menace the ability is typically better in low-powered formats, there are still plenty of powerful Creatures with Menace that do break out
If you had asked me about unbanning Faithless Looting a year ago, I likely would have been fully on board, although recent developments in the format (like the printing of Dragon's Rage Channeler, new madness cards like Asmoranomardicadaistinaculdacar, and reanimation like Persist in Modern Horizons 2 ) give me pause
Since then, prowess has become a rare but highly desirable keyword
As such, they had a number of various Silly Putty eggs lying around