DVRKSTVR

Landfall - whenever a land comes into play opponent sacrifices a creature. If they can't, they lose 2 life.
Slivers and Phyrexians you control enter the battlefield with X + 1/+ 1 counters, where X is the number of lands that you control.
Slivers and Phyrexians have "{t}: add one mana of any color, spend this only to activate abilities.
{t}{3} proliferate
{t}{6} until the end of your next turn creatures you control gain indestructible, flying and vigilance.
{t}{10} Exile all permanents. Create