Quote from MajoraXThe explanation is simple: mortals trample; Gods annihilate.
Source: Weekly MTG
Here are the set promos.
Finally a good white villain quote: "So, do I ever re-evaluate my life choices? Never, because I know what I'm doing is a righteous cause."
Legendary Journey: Heroes & Planeswalkers
Saga: Shards of Rabiah
Legends: The Elder Dragons
Read up on Red Flags & NWO