While Cassiopeia's no boots passive is very thematic, the addition of more boot based systems over the years (like role quest rewards) has made it feel like a punishment at times instead of a boon.
Base Stats
Base Movement SpeedBuff
328335
Serpentine Grace
Movement Speed MechanicRework
Gain 4-72 Movement Speed but cannot purchase bootsIncreased effectiveness of all Movement Speed buffs by 6-40%