At the heart of the strategy is Grapha, Dragon Lord of Dark World, an infinitely recurring 2700 ATK boss that comes back every turn
Also, due to the 3rd effect of [Herald of the Arc Light] and the 2nd effect of [Chaofeng, Phantom of the Yang Zing], you can search for follow-up cards like [Illusion of Chaos], [Diviner of the Herald], or various hand traps when they are sent to the Graveyard, so even if this board is broken, you can perform additional plays on the return turn
Islands cease to produce extra mana, since the effect of High Tide ends, and the delayed triggered ability no longer exists
Many local game shops do a steady business in so-called singles and graded cards, and it continues to be a strong source of revenue in an otherwise turbulent retail landscape.
These extra mechanics, while having the potential to produce great flashes of synergy, do ever so slightly muddy the waters around what exactly the decks winstate is supposed to be