Few enchantments in MTG have ever dominated as many formats as this card has
Yes, he's scary, but his copy trigger is off death, not 'leaves the battlefield,' which means there are a lot of easy ways to remove him and not care about his trigger at all

This deck contains: 1 60-card starter deck including 2 foil cards 11 Tokens 1 Rulebook 1 Booster pack containing 12 randomized cards Amber & Sapphire Decklist: 1 Alice - Accidentally Adrift 1 Ariel - Singing Mermaid (Rainbow Foil) 2 Aurora - Holding Court 2 Aurora - Regal Princess 3 Aurora - Tranquil Princess 1 Beast - Gracious Prince 2 Belle - Inventive Engineer 2 Cinderella - Gentle and Kind 3 Cruella De Vil - Fashionable Cruiser 1 Grand Pabbie - Oldest and the Wisest 3 Hans - Noble Scoundrel 3 Jasmine - Heir of Agrabah 2 Julieta Madrigal - Excellent Cook 3 Maid Marian - Delightful Dreamer 3 Mufasa - King of the Pride Lands 1 Mulan - Considerate Diplomat (Rainbow Foil) 3 Mulan - Free Spirit 2 Nani - Protective Sister 3 Pluto - Rescue Dog 3 Rapunzel - Sunshine 1 The Queen - Mirror Seeker 2 Aurelian Gyrosensor 3 Be Our Guest 2 Coconut Basket 1 Dig A Little Deeper 1 Look At This Family 2 Lost in the Woods 2 Motunui - Island Paradise 2 World's Greatest Criminal Mind Booster pack rarity breakdown: 2 Rares, super rares, or legendaries 3 Uncommons 6 Commons 1 Foil card of any rarity Related Products

The CCC case makes the most of your collectible card
This ability is powerful in any format, however, its especially useful in Commander
The fact that most of them require generic mana means that they are available to any deck that can take advantage of it