This is yet another separate from packs product that isn't truly suited for competitive play
Change mana cost, type line, rarity, tags, flavor text, or artwork and youll see the preview update immediately
There are a few mechanics which really boost the decks ability to chain-cast spells and get either commanders ability rolling earlier, which is nice for a precon which lacks the kind of fast mana sources you usually find in this kind of deck
Zegana also pairs really well with high-powered green cards like Ghalta, Primal Hunger, which can enter the field before Zegana and give you 12 cards in hand and 12 +1/+1 counters
A product that multiple Standard decks can be built out of that explains and teaches the fundamental principles of deck construction will be an incredible place for new players to begin their Magic journey
Its a neat idea, and one Im curious to see players build around