A one-ink card, Cinderella, Ballroom Sensation isnt great because of its stats, which are standard for such a cheap card, but due to its ability which enables players to use the card to sing songs that usually require characters that cost at least three ink to sing them
Between multiple cantrips like Ponder, and Brainstorm that draws three cards all on its own, Planisphere grows even faster in older formats
Based on the latest market prices tracked on TCG Stacked, Fire Magic is worth about $0.66 USD for a regular copy and $0.94 USD for a foil copy
Gruesome and Grim is a song card from Rise of the Floodborn based on the tune that also just so happens to pair incredibly well with Sword in the Stone character cards
Unfortunately, Scions & Spellcraft is one of the most unfocused precons in the set, and as a result, it could do with a good bit of chopping and changing
It may not be Tier 1, but I wouldnt be surprised to see Sapphire/Steel remain somewhat competitive