Once the card has counters on it, you can choose to remove 1 and get either +2/+2 for whatever is holding Jitte , -1/-1 for a target creature, or recover 2 life
MTG Mechanic Knowledge is power
You could sell your cards to a local card shop, knowing full well what they sell for online (because you looked up the Pokemon card prices on Mavin.io right?)
Missy comes with an added bonus during the end phase that can either let you draw cards and make chaos ensue (though the latter is only relevant if you're playing with Planechase) or your artifact creatures deal one damage to an opponent
If not being able to trust who you are seeing isnt trouble enough in the land of shapshifters, the environment itself seems capable of bending perception and confusing all sense of direction for visitors
She won the Legendary creature battle, she was a major flavor presence in Time Spiral Block, she has sold special stuff like Divine vs Demonic and From the Vault: Angels