Garfield certainly knew they were powerful
I often have grand plans and bold visions of what I'm going to paint, but when I'm going to do a detailed background or try to recreate a card's setting, I often hesitate to start
Cube has such a motley assortment of cards that you never know what you are going to have to deal with
Therefore, I see Senu as a decent inclusion in the 99, priced somewhere in the $5-$7, potentially up to $12 in the next two years
One Reddit user posting on the MTG Finance feed found a binder of alphabetized cards from Revised for $50 from an estate sale in 2014
Im sure they're still out there, wherever you left them, waiting, after all these years, to untap