Without the many strong artifacts like Caltrops, Al-Abara's Carpet, Horn of Deafening, Farseek Mask, Leonin Bladetrap and more, wed have a great idea for punishing attackers or keeping yourself safe with very few tools to actually make it work
Green ramp decks are so consistent in cube they tend to output a serious thing about as quickly as your average sort of Reanimate deck manages
While Hofri's buffs mean that this card makes your non-Spirits more powerful once they've died, Hofri's ability also affects creatures that were already Spirits from the word go
The blend of rooms works like a well-timed scene change
Tomik has a unique size thats quite interesting as an addition to Death and Taxes, my favorite being its immunity to the best removal spell against Death and Taxes
All the convenience of that low mana cost is lost when the card sits dead in hand