Can be easily balanced if you add one of those mentioned - consider "Foolish Burial" also has no cost, and lets you send just 1 monster to the GY and the card is Limited for being too good
Special Summon 1 Level 1 "Purrely" monster from your Deck, but negate its effects, then Special Summon from your Extra Deck, 1 "Purrely" Xyz Monster with the same Rank but a different Attribute than the targeted monster, by using that Special Summoned monster as material
Urzas Saga helped a lot of archetypes becoming much stronger than they were before, adding a lot of consistency and an alternative win condition to their shells
This card was banned up until 2018, and even now that its off the banlist, youre still only allowed to play one copy of it
C Common Marshmallon Glasses X SPELL Continuous While "Marshmallon" is in your Monster Zone, your opponent cannot target monsters other than "Marshmallon" for attacks
Regardless, its nice to see the original Evil Queen get her first Enchanted