To get an idea of what kind of monetary value this card is likely to fetch on the secondary card market, theres one card in particular we should analyze: the Base Set Charizard reprint we got in Celebrations
A raw 1996 original can still be found in the low hundreds to low four figures depending on condition, and even graded copies in mid-grade sit in the four-figure range
Also, note that there are tons of great card-draw in White that's not here like Sage's Reverie, Stone Haven Outfitter, Lady of Laughter and the legendary Faramir, Field Commander that have various triggers either ETB or over time when something happens.
Were getting new Soul Sisters all the time, these days: from Impassioned Orator to Guide of Souls to Lifecreed Duo, this effect is now a hallmark of white creatures
Cinderella, Melody Weaver will be released with Ursulas Return in local game stores and Disney parks on May 17th, before receiving a wider retail release on May 31st.