This card is already putting up some numbers in formats like Pauper
Defeating one opponent and gaining an unreasonably high amount of life is usually a way to end games outright
Cost reduction will allow you to get cards like Karametra, God of Harvests, Reki, the History of Kamigawa, and Gandalf the White out early in order to capitalize on their ramp, draw, and synergy
For example, Nibelheim Aflame can have a white creature deal damage to a creature with protection from red
Mirabel finds a prophecy that shows Bruno becoming Ursula's slave, and then she asks her sister Luisa to help prevent the prophecy from coming true, but they fail
Though she only has 2 Strength and 4 Willpower, plus 2 points of Lore, she has a similar bonus to Snow White, in that she makes use of a specific subtype to bolster your cards