(2025-06-06) In the rare case where enough -1/-1 counters are put on Aerith Gainsborough at the same time to make its toughness 0 or less, the number of +1/+1 counters on it before it got those -1/-1 counters will be used to determine the value of X in Aerith Gainsborough's third ability
Of course, if you can pair this card with any number of red mana-ramping spells (a la Seething Song or Battle Hymn) and one-mana cantrips (like Might of the Meek, Ancestral Anger and the like), it truly sings, and it pairs beautifully with many other cards on this list
Occasionally, this blue instant can even be used against your opponent
Kayas Ghostform is also good here, though not quite as good, given the creature will leave play dropping off all Equipment, and losing all other Auras
It's got a ridiculously high price tag thanks to powering out several big plays each turn or auto-winning with Revel in Riches