>>94250976Almost every major change since mid-Season 1 was either caused by Toffee or happened in response to him.
He cast out Buff Frog and Ludo, setting them on their character arcs.
He forced Star to use the Whispering Spell, cleaving her wand and killing off Ludo's goons, changing the show's dynamic from monster-attack-of-the-week to being character-focused and story-driven.
He shaped Ludo from a hobo to a warlord with the power to overthrow the Butterfly Kingdom.
He guided Ludo into kidnapping Glossaryck and the Book of Spells, depriving Star of her mentor and family's knowledge, and has now apparently destroyed both.
He killed Moon's mother, taking monsters and Mewmans off the path toward peace and forcing Princess Moon to go from a relatively happy-go-lucky girl to a cold and determined Queen.
And his ultimate goal was to irrevocably change Mewni by neutralizing magic, rendering Mewmans powerless to stop monsters from retaking their kingdoms.
Toffee's actions have changed every aspect of the story in radical ways from where they began.
So far all Eclipsa's done is write down her spells that Star found centuries later and make a contract with Moon to deal with, you guessed it, Toffee.