Dhyrestia, Drow Queen

Other elves you control have deathtouch
Elves you cast have ripple 2
Sacrifice an elf: each opponent loses a life and discards a card. You draw a card and gain a life for each opponent
{3}{g/u}{g/u}: each opponent who has no cards in their hand loses life equal to the number of non land permanents they control then mill 2