During the time while you are building board presence, your opponent has free reign to play threats and proactive disruption
There's some funny things you could do with this, stacking a bunch of Auras for various reasons onto one of your creatures, but really this is pretty solid mass creature removal if you can get your storm count up to 2 or 3 before casting
We get a deck focused on Food tokens and gaining life with Frodo, Adventurous Hobbit and Sam, Loyal Attendant partnered at the helm of this precon, with some typal inclinations because there are plenty of halflings here
Many of whites best creatures have that 2-mana value, so this mass reanimation spell can represent a huge flip in board control
The Phyrexian angel slotted right into the Commander format and has even seen play through a variety of competitive reanimation builds within Constructed Standard
That term is 'power creep', and by the time Black & White rolled around, players were no strangers to it