Ungoliant, She Who Devours

Reach, trample
When Ungoliant enters the battlefield, you may
sacrifice any number of creatures. Put X +1/+1
counters on Ungoliant, where X is the total
power of the creatures sacrificed this way.
At the beginning of your upkeep, each player
sacrifices a permanent he or she controls. Put a
+1/+1 counter on Ungoliant for each permanent
sacrificed this way.