Please, don't run her, thanks
So this project, of hitting ten random cards from Gatherer is a cool way to address one of my core points there's a ton of great cards in Magic you've forgotten about or never heard of
The Ozolith There are a gazillion cards that put counters onto permanents, but cards that move those counters around arent so common
Screaming Nemesis MTGs take on Carrie is kind of a messed-up card, good enough for Standards ban list
Something, for example, like the three-mana artifact Crucible of Worlds
The Rebuff is a two-mana counter that counters any spell for mana equal to your devotion, and my Commander has triple Blue so that alone is a Mana Leak and can go higher