Archived from the original on July 16, 2009
I get the desire to hard cast cards like snacker but adding the necessary support for that reduces the decks consistency, which is one of its strong suits imo
However, some restrictions are implied naturally by common sense and plain physics
Many of the devoid cards from Modern Horizons 3 have abilities that help with color fixing, whether they give you Eldrazi Scion tokens to help with your colorless production (Spawn-Gang Commander), turn your Eldrazi multicolor mana dorks (Path of Annihilation), are MDFCs (Drowner of Truth), or change how your mana can be used (Abstruse Appropriation)
Apocalypse changed Magic forever while working well as a set in its own right
That is certainly the case for Progenitus, which debuted all the way back in 2009s Conflux set