In this bracket, more often than not, the supporting cast of cards is more impactful and important than the Commander
No, they are not
WotC found Breach, especially with Mox Opal, made for a combo deck that was too fast, resilient, and non-interactive, even winning on turn one
Lightscribe makes that a win condition with enough drakes and birds
It isnt sustainable without changes
Kuja, Genome Sorcerer // Trance Kuja, Fate Defied Rarity: Rare TYPE: Legendary Creature // Legendary Creature SUBTYPE: Human Mutant Wizard // Avatar Wizard CMC: 4 Mana cost: USD: $0.00 EUR: 0.00 TIX: 0.00 EDHREC RANK: 3296 (3/4) At the beginning of your end step, create a tapped 0/1 black Wizard creature token with "Whenever you cast a noncreature spell, this token deals 1 damage to each opponent." Then if you control four or more Wizards, transform Kuja