2012-07-01 : Liliana’s emblem doesn’t remove any other abilities of Swamps you control.

2012-07-01 : When you activate Liliana’s second ability, you choose only the target creature. You choose whether that creature gets +X/+X or -X/-X when the ability resolves. The value of X is determined by the number of Swamps you control when the ability resolves.

2012-07-01 : You can activate Liliana’s first ability even if your library contains no Swamp cards (or you don’t want to find one). You’ll still search your library and shuffle it.

2013-07-01 : Each of Liliana’s abilities refers to lands (or land cards) with the subtype Swamp, not just ones named Swamp.