using a card like Jace, the Mind Sculptor to put a Time Warp or other extra turn spell on top of your library turn after turn offers infinite turns
And Imperial can search for all five of them
It costs the same as three Mogg Fanatics would, has the stats of three combined Mogg Fanatics, and has an ability that is equivalent to sacrificing three Mogg Fanatics
Necropotence [c]Necropotence[/c] has its downsides, but in most cases, this is a stellar enchantment to play
(Boy, they sure love giving land creatures all creature types.) I would even argue that four generic mana is easier to produce than three snow mana
Life from the Loam and other land-related cards are seeing a lot of pressure due to this, and it could turn out to be a viable archetype in the format