DVRKSTVR

Landfall - Whenever a land enters the battlefield target opponent sacrifices a creature. If they cant, they lose 2 life.
Slivers and Phrexians you control enter the battlefield with X +1/+1 counters on them, where X is the number of lands you control.
Slivers and Phrexians have "{t}: add one mana of any color, spend this only to activate abilities."
{3}: Proliferate
{6}: Untill the end of yout next turn, creatures you control gain Indestructible, Flying and Vigilance.
{10}: Exile all permanent