Reads well for Standard constructed
The deck then adds powerful creature token generating spells to quickly grow a massive army
Protection vs Board Wipes Protection does not stop board wipes
Nashi, Searcher in the Dark An evasive 2-drop that gets bigger and fills the graveyard, Nashi, Searcher in the Dark from Duskmourn: House of Horror plays like a powered-down Psychic Frog, which has been more than viable in its home formats of Modern and Legacy
Reprints can help with the accessibility issues, but nothing can help the fact that the more powerful cards you print, the higher the power level of your Eternal formats
You do need to have some amount of board presence established for this to end the game, but it doesnt take too many creatures for this to overwhelm a table beneath a flurry of hooves, paws, and other things to make a lake of your table