This is another card I love for the name alone
The idea is to use Auras and Enchantments to get your foes fighting anyone but you, while still having some solid creatures to attack or defend when you need to
Nashi also uses life as a resource, so any deck that uses this rat as a main rather than a side piece needs some lifegain to balance that
With plenty of effects to flicker your own creatures at instant speed, you can keep triggering her abilities on your opponents turns over and over again for tons of value
Its on the pricey end for sure, but Cycling for just one mana more than makes up for that
If the discard was something more universal like lands or blue cards instead of artifacts, or always just one card, while retaining its instant cost it would probably get more play than Fact or Fiction, mostly for occupying a slot on the curve in less demand