The fact shes a solid 3/3 for three mana is a huge boon since we can at least rely on her to crew in aggressive situations where we want those artifacts tapping to attack instead
Picture this, you cascade on your opponents end step and cascade into a powerful spell
Black & WhiteDark Explorers, 110/108) Chip-Chip Ice Axe (Sun & MoonUnbroken Bonds, 165/214) Delinquent (XYBREAKpoint, 98/122, 98a/122, and 98b/122) Duskull (Sun & MoonCosmic Eclipse, 83/236) Flabb (Sun & MoonForbidden Light, 83/131) Forest of Giant Plants (XYAncient Origins, 74/98) Ghetsis (Black & WhitePlasma Freeze, 101/116 and 115/116) Hex Maniac (XYAncient Origins, 75/98 and 75a/98) Island Challenge Amulet (Sun & MoonCosmic Eclipse, 194/236 and 265/236) Jessie & James (Hidden Fates, 58/68 and 68/68) Lt
A mechanism to reduce the colourless aspect of a cards cost rather than the coloured would be less abusable in terms of the colour differences
Who will buy Unstable , and how many members of this group are out there